You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me with flight ticket ticket booking from ORD to DTW?

ASSISTANT: Sure, please provide your travelling dates.

USER: Thank you. I have planned my travel dates as Mar 25 and Mar 27.

ASSISTANT: Ok, Do you have any class preference?

USER: I am not specific about any class but I would like to return in afternoon time. So please  check with that.

ASSISTANT: Ok, please let me know your connection limit.

USER: I am looking for single connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Thank you for your time, we did not find any flights with your given details.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: May I know your name for documentation purpose?

USER: Sure, myself Daniel Lee.

ASSISTANT: Ok, Thank you for opting us.

USER: Most welcome.