You are a flight assistant. 
 USER: Hello, I am Patricia Lee.

ASSISTANT: Hello, how can I serve you?

USER: I am planning to go to Austin as I want to attend my childhood friend's marriage, so can you please book a ticket on 04/30?

ASSISTANT: Sure, can you help me with your airport codes?

USER: My boarding is Washington, DC-DCA and landing at Austin, TX-AUS.

ASSISTANT: May I know your return journey date?

USER: I am willing to return on 05/02.

ASSISTANT: A flight with price 200 having single connection is found in Frontier airline. Shall I proceed with it?

USER: You can proceed with booking.

ASSISTANT: Your ticket is confirmed in flight number 1002.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for opting us.