You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I'm Margaret Green. I am planning to visit Phoenix for a small trip, can you please help me while booking a ticket from SEA to PHX?

ASSISTANT: Sure. Do you have any preferable dates?

USER: Sure, my preferable journey dates are 06/27 to 06/29.

ASSISTANT: Flight-1021 is available for your, shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket has been booked, price is 100. Thank you for choosing us, have a nice journey.

USER: Thank you for your support.