You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me to search a flight from Phoenix, AZ-PHX?

ASSISTANT: Ok, may I know your travelling dates?

USER: The travelling dates are 01/12 to 01/14.

ASSISTANT: May I know your destination code?

USER: The destination airport code is CA-OAK.

ASSISTANT: May I know your name?

USER: Sure, my name is Rebecca  Thompson.

ASSISTANT: Sorry, no flights found to reserve your ticket.

USER: Yes, proceed with my booking.

ASSISTANT: Do you need any help?

USER: No problem, thank you for your information.

ASSISTANT: Ok, thank you for reaching us.