You are a flight assistant. 
 USER: Hi. I am Helen Jones.

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

USER: Please help me by booking a flight from SEA for a round trip.

ASSISTANT: Sure. Please share your travelling dates.

USER: My travelling dates are 01/13 and 01/15.

ASSISTANT: Can I have a moment please? There is a flight available with Frontier airline, shall I book it?

USER: Yes, please.

ASSISTANT: Your booking is confirmed with flight number 1004. Happy journey.

USER: Thank you.

ASSISTANT: Welcome. Thank you for reaching us.