You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Virginia Young.

ASSISTANT: Young, how may I aid you?

USER: I would like to visit Phoenix Central Library to gather some information to write an article, can you please help me to book a flight from IAD to PHX?

ASSISTANT: Sure, please provide your itinerary dates.

USER: Sure, my travel dates are from 12/20 to 12/22.

ASSISTANT: Please wait for a while.

USER: Ok, take your own time.

ASSISTANT: Spirit airlines with flight 1026 is available on your route.

USER: Ok, please please proceed for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.