You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I have planned a trip to Detroit, so can you please help me with flight ticket booking from SEA to DTW?

ASSISTANT: When you are willing to travel?

USER: Thank you for accepting my request and my planned travel dates are Nov 13 and I will arrive back on Nov 15.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single lay by in my journey.

ASSISTANT: May, I know your good name?

USER: Sure, my name is Kenneth Walker.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: I would like to travel in a business class flight, please check with this one.

ASSISTANT: Sorry, we found no flights with your specifications.

USER: Ok, no problem with that one. Thank you for your help.

ASSISTANT: Thank you for reaching us.