You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Rebecca Evans here. I would like to visit Camelback Mountain with my brother to do hiking, please help me in booking a ticket from AUS to PHX.

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My planned travel dates are 12/21 and 12/23.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Ok. There is a connecting flight 1024 of Spirit airlines, shall I proceed?

USER: Please make it fast. Ok, please proceed for booking.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Welcome.