You are a flight assistant. 
 USER: Hello, Mary Martin here.

ASSISTANT: Hello, how can I help you?

USER: I'm planning to visit Dallas World Aquarium in the month of February, can you please book the ticket from DCA?

ASSISTANT: May I know your travelling dates?

USER: My departure day will be on 02/27 and my return day will be on 02/29.

ASSISTANT: May I know your destination airport codes?

USER: The destination airport code is DFW.

ASSISTANT: There is a flight available with price 100 and flight number is 1010, would you like to proceed with the booking?

USER: Yes, please proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for booking a ticket.

ASSISTANT: You are welcome.