You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Barbara Carter want to visit Seattle, can you book a ticket from DEN to SEA?

ASSISTANT: May I know your trip dates?

USER: Sure, my travelling dates will be 09/23 and 09/25.

ASSISTANT: There is a direct flight with flight number 1017 with price is 100, can I proceed?

USER: Ok, proceed with my booking.

ASSISTANT: Your booking is done in SouthWest airlines.

USER: Thank you.

ASSISTANT: Most welcome.