You are a flight assistant. 
 USER: Hello, I am Stephanie Taylor.

ASSISTANT: Hello, how can I assist you?

USER: I am heading to Seattle, WA - SEA to meet my childhood friend. Please book me a ticket from Phoenix, AZ - PHX.

ASSISTANT: Sure, when are you planning to travel?

USER: I would start on 03/22 and return on 03/24.

ASSISTANT: Please provide your specifications.

USER: I need a flag stop in between.

ASSISTANT: Delta airlines with single connection and price is 1014 flight. Shall I proceed for booking?

USER: Yes please.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you.