Hi,.
user
Hello. How may I help you?
assistant
Please book a ticket from Los Angeles, CA-LAX to Denver, CO-DEN.
user
Sure, I am here to help you. Could you please share your travelling dates?
assistant
My travelling dates are from 07/16 to 07/18.
user
May I know your name?
assistant
My name is Matthew Robinson.
user
Sorry, no flight is available for you.
assistant
Thank you.
user