You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please help me in reserving the ticket from HOU to DTW?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: I would like to travel on May 29 and again I will return back on May 31.

ASSISTANT: May I know your name please?

USER: Myself Andrew Hill.

ASSISTANT: Do you have any connection limit?

USER: I am comfort to travel in direct flight.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Not a big deal, anyhow thank you very much for your information.

ASSISTANT: Thank you.