Hello, Richard White here.
user
Hello, how may I serve you today?
assistant
I need a flight ticket  to SFO from DEN.
user
Sure, may I know your trip dates?
assistant
December 27 and 29 are my travel dates.
user
Do you need any specific airline preference?
assistant
I need a connecting flight.
user
How much you can afford for this ticket?
assistant
I can afford 100 for the ticket.
user
We found a direct flight in searching. Shall I proceed for booking?
assistant
Please proceed and book the ticket.
user
Ok, there is a Southwest airlines with flight number 1016 is providing service on your route with price of 100 in economy class.
assistant
Thank you for booking the ticket.
user
Your booking is confirmed. Thank you for reaching us.
assistant