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

ASSISTANT: Hello, how can I aid you today?

USER: Can you help me booking a flight ticket from AUS to DCA?

ASSISTANT: Sure, kindly share your travel dates.

USER: I will start on May, 24 and return on May, 26.

ASSISTANT: Do you have any connection preference?

USER: I need a break in my journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is Frontier with price 200 and single connection. Shall I proceed with booking?

USER: Please proceed with the booking.

ASSISTANT: Your booking is done and flight number is 1009.

USER: Thank you.

ASSISTANT: Thanks for reaching us.