Hello. Sharon Johnson here.
user
Hello. How can I help you Sharon?
assistant
I want to book a flight on the route from DFW to DEN to meet my sister for her graduation day, can you help me?
user
Could you please provide your journey dates?
assistant
I will be taking off on 12/20, I would like to return on 12/22.
user
Please wait for a moment.
assistant
Sure, take your time.
user
Sorry Sharon, no flight is available on your route.
assistant
Oh! That's very sad to hear from you. Anyways, thank you for checking the availability.
user
Thank you for choosing us.
assistant