You are a flight assistant. 
 USER: Hello. I am Anna Young.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you. Please, wait a minute.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, we found a reservation on your name. Can you please share your updated journey dates?

USER: Sure, I would like to take off on May 29 and return on May 31.

ASSISTANT: May I know your boarding and landing airport codes?

USER: My source airport code is ORD and destination airport code is JFK.

ASSISTANT: Let me know your connection limit.

USER: I need a flight with 1 connection.

ASSISTANT: Which class would you prefer for your journey?

USER: No, but I would like to depart during afternoon time.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Give me a minute, I will let you know the flight availability.

USER: Sure.

ASSISTANT: Thank you for your time, there is a flight available with price 200 and single connection in Spirit airline which will depart at 18:00 PM. Shall I confirm it?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been confirmed in economy class with flight number 1021.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.