You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to travel from DFW to SEA as a holiday trip. Can you do the reservation?

ASSISTANT: Sure, please share me your trip dates.

USER: My journey dates are 02/20 and 02/22.

ASSISTANT: For booking we need your good name, please provide it.

USER: Rebecca Robinson here.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for choosing us.