You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be of your assistance?

USER: I am Virginia Anderson, I want to change my reservation as my plan to meet my friend is postponed. Can you help me with that?

ASSISTANT: Sure, please wait for a minute.

USER: Sure.

ASSISTANT: We found a reservation with your name, please provide your journey details.

USER: Ok. I will fly from AZ-PHX and destination is CO-DEN. I like to travel on 11/07 and return on 11/09.

ASSISTANT: No flights found with your requirements.

USER: Ok thank you for the information.

ASSISTANT: Thank you for reaching us.