You are a flight assistant. 
 USER: Hello, I am William Thompson.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to go for a round trip at Phoenix, AZ - PHX, will you help me to book a connecting flight?

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my travelling dates are from 03/24 to 03/26.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: As per your details, we found a flight with a fare of 100 in Frontier airline.

USER: You can proceed.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.