You are a flight assistant. 
 USER: Hello, my name is Samantha Martinez.

ASSISTANT: Hello, how can I help you?

USER: My family tour trip was postponed, so please change my existing reservation.

ASSISTANT: Ok, please wait a minute. Let me check and revert you.

USER: Ok.

ASSISTANT: Thanks for your time. We found a reservation matching your details. Can you please provide me your updated journey details?

USER: My source and destinations are IL-ORD, AZ-PHX. And my departure day is 03/07, return day is 03/09.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting. There is a AA airline with flight number 1022 and price of 100 matching your request. May I proceed for booking with this airline?

USER: Yes, please.

ASSISTANT: Ok, your reservation is done.

USER: Ok, thanks for your service.

ASSISTANT: Thank you for reaching us.