You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in booking a flight ticket from DEN to SFO?

ASSISTANT: Sure, can you share your trip dates?

USER: I want to travel on 10/12, and return on 10/14.

ASSISTANT: Do you have any specifications?

USER: I want to depart in the morning time.

ASSISTANT: May I know your name?

USER: I am Dorothy Thomas.

ASSISTANT: There is a connecting flight with number 1006 in airline Spirit, the fare is 100 in economy class. Can I book it?

USER: Proceed with the booking.

ASSISTANT: Your ticket is reserved, the depart time is 8:00 hours and return time is 15:00 hours.

USER: Thanks for the help.

ASSISTANT: Thank you for opting us.