Hello,.
user
Hello, how may I assist you?
assistant
Please book a ticket from Dallas & Fort Worth, TX-DFW to Denver, CO-DEN. I am Barbara Hernandez.
user
Sure, can you please provide your travelling dates?
assistant
Departure date is 01/25 and will return by 01/27.
user
Do you need any halt?
assistant
Please provide a halt.
user
Unfortunately there is no flights found with your provided information.
assistant
Thanks for the assistance.
user