You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,.

USER: This is Linda Allen, from Detroit.

ASSISTANT:  Linda Allen, What kind of service are you looking for?

USER: Actually, I came here looking for the flight booking service, to reach Phoenix from Detroit. So, Can you help me with your flight booking service?

ASSISTANT:  Sure, I can help you with our best services.

USER: Thank you for your response.

ASSISTANT:  I need your specified travelling dates, that you have scheduled before?

USER: Sure, I want to reach Phoenix, on 11/03 and return from Phoenix, on 11/05.

ASSISTANT: Could you let me know, the Phoenix airport code and Detroit airport code?

USER:  MI - DTW, is Detroit airport code and AZ - PHX, is Phoenix airport code.

ASSISTANT: On what flight, do I need to book the ticket. Either a connecting flight or a direct flight?

USER: Please book it with the connecting flight.

ASSISTANT:  At what price range, you want to travel to Phoenix?

USER: I need to travel to Phoenix, within the range 200.

ASSISTANT: Ok, Please wait for a couple of minutes.

USER: Sure, Please book quickly.

ASSISTANT: Sorry Linda Allen, We hardly tried to provide the flight for you. But, there is no flight found on your specified travel dates.

USER: That's ok, You have done a great job. Thank you for the service.

ASSISTANT: Thank you for visiting us. For the next time you visit us, we definitely try to provide you the flight. Have a great day ahead!.