You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jeffrey Parker.

ASSISTANT: How may I assist you Parker?

USER: I would like to go for a holiday trip from Detroit. Can you please provide me a ticket?

ASSISTANT: Sure, I will help you. Could you please provide your preferable dates that you want to travel?

USER: I am flying on these dates 11/06 and 11/08.

ASSISTANT: Ok, may I know your origin and destination airport codes?

USER: I am comfortoble with these airport codes DTW and DFW. Sure, take your time.

ASSISTANT: Sorry to inform you that, there are no flights available with your requested dates of travelling.

USER: Ok, thank you for your services.

ASSISTANT: Thank you for approaching us, have a great day.

USER: Most welcome.