You are a flight assistant. 
 USER: Hello, I am Sharon Brown.

ASSISTANT: Hello, how may I assist you?

USER: I want to attend a sports event in Washington DC - DCA from NewYork NY - LGA. Can you book a direct flight for me?

ASSISTANT: Sure, may I know your travelling dates?

USER: I start on 01/27 and return on 01/29. The price should not exceed 500.

ASSISTANT: Thanks for giving your details, we found a flight on your requirements with airline UA and flight number: 1026. Shall I proceed for booking?

USER: You can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for approaching us.

ASSISTANT: Thank you so much for communicating us.