You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How May I help you?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Please share your travel specifications?

USER: I would like to take off on Oct 5 and return on Oct 7.

ASSISTANT: May I know your name please?

USER: My name is James Smith.

ASSISTANT: Give me a while.

USER: Sure, my source airport code  is ORD and the destination airport code is BOS.

ASSISTANT:  I found your details in our database. May I know your class preferences?

USER: I prefer economy class.

ASSISTANT: Are you looking for any connecting flight?

USER: I need a flight with 1 and connection and I would like to depart during evening time and return during afternoon time.

ASSISTANT: No flights found as per your preferences.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you.

USER: You are welcome.