You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: As I am a scientist, I want to attend science festival with my students at Phoenix. Can you do the reservation?

ASSISTANT: Sure, may I know travel dates?

USER: Dates are 02/10 and 02/12.

ASSISTANT: Could you please share me your airport codes?

USER: My airport codes are ATL-PHX.

ASSISTANT: Can you please share me your good name?

USER: Katherine Jones here.

ASSISTANT: There is no flight on your route.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you so much for choosing us.