hello, I am Michael Green.
Hello, how may  I help you today?
I want to book a ticket.
OK, Please tell me your journey details.
I want to travel from Denver, CO - DEN to San Francisco, CA - SFO.
May, I know your date of journey?
My journey dates is 08/28 to 08/30. My price limit is 5000. I need a single connections.
OK,  Please wait a minute.
Sure.
Thanks a lot for being patience.
OK.
Your  airline :Frontier, flight number:1003, price :200, connection limit :1.