Hi, my name is John  Thomas.
user
Hello, how may I render you?
assistant
I intend to travel on 07/25 from Dallas & Fort Worth to Denver in order to attend food festival. Can you help me book a connecting flight?
user
Sure, please let me know your return date to proceed further.
assistant
I would like to return on 07/27.
user
May I know your fare preference?
assistant
It should be within 500.
user
Can I know your airport attributes?
assistant
I need to start from DFW to reach DEN.
user
Please hold on I will check and let you know.
assistant
Sure.
user
Thanks for waiting, unfortunately there are no flights found with your requested dates.
assistant
Thank you for your response.
user
You're welcome, have a nice day.
assistant