You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Patricia Davis from Denver.

ASSISTANT: Davis, how may I help you?

USER: I have to go to Denver next week. Can you please help me in flight ticket booking process?

ASSISTANT: Sure, please provide your airport codes.

USER: Thank you for your positive response, I would like to fly from DEN and destination airport is DEN.

ASSISTANT: May I know your itinerary dates?

USER: I want to take off on 08/29 and please confirm my return ticket also on 08/31.

ASSISTANT: Please hold on for a while.

USER: Ok, take your time and find a best flight for me.

ASSISTANT: Frontier airlines with flight 1020 is providing service with a connecting flight and ticket costs you 100.

USER: I am comfortable with this flight, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.