Hi, I am Mary White.
user
Hello. How may i be of your assistance?
assistant
 I want to participate in the multi-car 50 mile canyon road test drive, which is going to be held at Denver. CO - DEN. Can you help me to book a connecting flight?
user
Sure, please let me know your travelling dates to proceed further.
assistant
I want to travel on 01/27 and recur on 01/29.
user
May I know your source airport code?
assistant
My source is from Phoenix, AZ - PHX.
user
Wait a moment I will check and revert to you.
assistant
Sure.
user
Thanks for waiting, unfortunately there are no flights found with your essential details.
assistant
Ok, no issues. Thanks for your response.
user
Thanks for consulting us.
assistant