You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I provide assistance for you at this moment?

USER: I am planning to visit Detroit on Oct 18, will you help me in booking the flight ticket?

ASSISTANT: Sure, do you need any stop over in between the journey?

USER: I need a connecting flight.

ASSISTANT: Ok, on which date would you like to return?

USER: I would like to return on Oct 20.

ASSISTANT: Ok, may I know your corresponding airport codes?

USER: My airport codes are LGA and DFW?

ASSISTANT: Share your class preference.

USER: I don't have nay other specifications?

ASSISTANT: Ok, can I know your good name please?

USER: Myself Kevin Clark.

ASSISTANT: There are no flights found on your requested dates.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.