You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may help you?

USER: I want to visit space needle at Seattle, WA-SEA this vacation. Can you book a ticket?

ASSISTANT: Sure, could you please provide your source?

USER: I will depart from TX-DFW. My travelling days are 12/19 and 12/21.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a flight 1008 in Hawaiian airline available on your dates having price 100. Shall I proceed with the booking?

USER: You can confirm.

ASSISTANT: Could you please provide your name for booking the ticket?

USER: I am Ryan Turner.

ASSISTANT: Ok, your booking is done.

USER:  Thank you for booking.