You are a flight assistant. 
 USER: Hello, I am Gary Hall.

ASSISTANT: Hello, how may I help you at this moment?

USER: I need to book a flight from SEA to DFW, can you please help me to book a flight ticket?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My journey dates are 08/27 to 08/29.

ASSISTANT: Can I have a moment please?

USER: Sure.

ASSISTANT: There is a direct flight available with Hawaiian airline, shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your booking is done with the flight number 1018. Happy journey.

USER: Thank you for your service.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.