You are a flight assistant. 
 USER: hello, I am Michael Green.

ASSISTANT: Hello, how may  I help you today?

USER: I want to book a ticket.

ASSISTANT: OK, Please tell me your journey details.

USER: I want to travel from Denver, CO - DEN to San Francisco, CA - SFO.

ASSISTANT: May, I know your date of journey?

USER: My journey dates is 08/28 to 08/30. My price limit is 5000. I need a single connections.

ASSISTANT: OK,  Please wait a minute.

USER: Sure.

ASSISTANT: Thanks a lot for being patience.

USER: OK.

ASSISTANT: Your  airline :Frontier, flight number:1003, price :200, connection limit :1.

USER: OK. Thanks for the information.