Hello, Thomas Miller here.
user
Hello Miller, what can I do for you?
assistant
I planned to attend for a wedding in DEN, can you book a flight ticket on 01/29?
user
Sure, may I know your source code and return date?
assistant
My source code is DTW. I would like to return on 01/31.
user
Ok Miller, wait for a minute.
assistant
Sure.
user
Sorry Miller, no flight's found on your name.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for contacting  us.
assistant