You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Raymond Wilson.I had planned to go on a vacation, but it was postponed.Can you change my recent reservation?

ASSISTANT: Sure, give me a moment.

USER: Ok, sure.

ASSISTANT: Raymond, I have found your existing reservation. Please share with me your new journey details.

USER: My source and destination airports are MA - BOS and NY - LGA. My travelling dates I like to change is 12/31 and 01/02.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Raymond, there is a flight available from AA airline and flight number is 1014. Shall I book it for you?

USER: Yes, book.

ASSISTANT: Raymond, your ticket has booked. Have a safe journey.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for approaching us.Have a nice day.