You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Katherine Anderson. I am planning to attend my cousin wedding in Boston, could you please help me in booking a flight ticket from Washington.

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are DC - IAD, MA - BOS.

ASSISTANT: On which dates would you like to reserve this ticket?

USER: I want to fly on 11/19 and return on 11/21.

ASSISTANT: How much you can afford for this ticket?

USER: I can afford up to 500.

ASSISTANT: We found a flight on your details with airline Hawaiian, flight number: 1017. Shall I book this ticket?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you so much for choosing us.