How to create a lambda expression with dynamic types

My programme will get service name and method name during its run time, and to execute the method dynamically I m creating a lambda expression based func.

public static Func<object,object,object> CreateLambdaExpression2(string tService, string methodName)
{
    var inputServiceType = Type.GetType(tService);
    var methodInfo = inputServiceType.GetMethod(methodName);
    var inputType = methodInfo.GetParameters().First().ParameterType;
    var outputType = methodInfo.ReturnParameter.ParameterType;

    var instance = Expression.Parameter(inputServiceType, "serviceInstance");
    var input = Expression.Parameter(inputType, "inputData");
    var call = Expression.Call(instance, methodInfo, input);

    var lambdaFunc = Expression.Lambda<Func<object,object, object>>(call, instance, input).Compile(); //<= this line throws the error.
    return lambdaFunc;
}

but it won't and it will throw error at run time

var compiledMethod = ServiceMapper.CreateLambdaExpression2(tService,"Get");

var serviceInstance = new TestDemoService();
var inputData = new TestDemoPersonRequest()
{
    Id = 555
};
var result = compiledMethod(serviceInstance, inputData);

System.ArgumentException: 'ParameterExpression of type 'UnitTests.ITestDemoService' cannot be used for delegate parameter of type 'System.Object''

Is there a way to specify the type for the Expression.Lambda?

Expression.Lambda<Func<object,object, object>>

to

Expression.Lambda<Func<inputServiceType ,inputType , outputType >>