You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to attend a Music festival at Phoenix, can you please help me in booking?

ASSISTANT: Sure, please provide your journey dates?

USER: My travel dates are from 03/21 and 03/23.

ASSISTANT: May I know your source and destination airport codes?

USER: My airport codes are from TX-IAH and AZ=PHX.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no problem.

ASSISTANT: May I know your name for documentation process?

USER: I am Jason Thomas.

ASSISTANT: Thank you for choosing us.

USER: Thank you.