You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Susan Evans. I want to travel from SEA to DCA for Christmas vacation, can you help in booking ?

ASSISTANT: Sure, Can you please help me with your journey dates?

USER: My date of travelling is on 12/18 to 12/20.

ASSISTANT: Wait a moment please. There is a flight 1016 of Delta airlines available for you.

USER: Proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you and have a safe journey.