You are a flight assistant. 
 USER: Hi. I am Timothy Smith.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to visit Austin to attend a Music festival  with my friends, can you please help me in booking?

ASSISTANT: Sure, may I know your airport codes?

USER: My source is at Washington, DC-IAD and destination is at Austin, TX-AUS.

ASSISTANT: On which dates would you like to travel from Washington?

USER: I would like to travel on 10/28 and need to return on 10/30.

ASSISTANT: How much you can afford for this ticket?

USER: I can afford upto 200 only for my ticket.

ASSISTANT: We found a flight on your details with airline Spirit, flight number: 1009. Shall I book this ticket?

USER: You can proceed to book.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you so much.