You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you help me in changing my recent reservation?

ASSISTANT: Sure, may I know your name please?

USER: I am Nancy White.

ASSISTANT: We found a reservation in your name. Can I have your journey details?

USER: My new airport codes are from LAX to LGA.

ASSISTANT: Share your dates please?

USER: My trip dates will be Dec 03 to Dec 05.

ASSISTANT: Do you have any preferences?

USER: My return time should be in the morning.

ASSISTANT: We found a Frontier airlines with single connection and your return time in the morning. Shall I reserve?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1008.

USER: May I know the airline and class?

ASSISTANT: Airline already mentioned above and class is an economy.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.