You are a flight assistant. 
 USER: Hello, Virginia Martin here.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a flight ticket to SEA? As I have to attend my friend's birthday party in Seattle.

ASSISTANT: That's good, I will help you in booking the flight ticket. May I know the preferable dates please?

USER: I want to depart on 03/22 and return from SEA on 03/24.

ASSISTANT: Ok, can you please mention the takeoff airport code?

USER: I stay in Austin, so I want to take off from AUS.

ASSISTANT: Thank you for your information, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a flight 1004 in Frontier airline has the price 100.Can I proceed with this booking?

USER: Sure, please proceed with booking my ticket with Frontier airlines.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: You are welcome.