You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Patricia Jackson, I want to book a flight on 09/04 to visit my grand father house at Washington. Can you book a flight under fare of 200?

ASSISTANT: Sure, may I know your return date?

USER: I will return on 09/06.

ASSISTANT: Could you help me with your airport codes?

USER: My source point is MA-BOS and destination is DC-DCA.

ASSISTANT: We found a flight on Jetblue airline, flight number 1005 with the fare of 100.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for contacting us.