You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I came to know about the rodeo which is going on at Phoenix. Can you help me in booking a ticket to Phoenix?

ASSISTANT: Sure, may I know your dates to travel?

USER: Sure, I will go on 06/21 and return on 06/23.

ASSISTANT: Ok, is it right your airport codes are from PHX to PHX?

USER: No, my origin airport code is ORD and destination airport code is PHX.

ASSISTANT: Ok, let me check, please wait a moment.

USER: Ok, take your time.

ASSISTANT: Thanks for your patience, but there is no flight for you with your provided dates.

USER: Ok, I will find some other alternative.

ASSISTANT: Ok, may I know your name for the documentation purpose?

USER: Thank you for your information. Sure, my name is Kathleen Martinez.

ASSISTANT: Thank you for approaching us.