Hello, I am David Brown.
user
Hello. How may I be of your service?
assistant
I need to gather all my old documents so I want to go from Detroit to Houston, can you please help me to book a ticket?
user
Sure, I am here to help you. When did you plan to travel?
assistant
I would like to leave between 12/10 and 12/12.
user
To proceed further I need to know your airport codes.
assistant
My preferable airport codes are from DTW to IAH.
user
Do you have any connection limit?
assistant
Yes, I need single connection flight.
user
Thanks for providing information, please give me some time I will check and let you know.
assistant
Ok, I will wait.
user
Thanks for waiting, unfortunately there are no flights found with your requested details.
assistant
Ok, no problem.
user
Thanks for choosing us, have a nice day.
assistant
Thanks for your kind help.
user