Hello.
user
Hello, how may I serve you today?
assistant
  I am Michelle Gonzalez. I want to book a ticket to Chicago, IL-ORD to meet my father. Can you book a ticket on 06/25?
user
Sure, may I know your return date?
assistant
My return date is 06/27.
user
Can you share your source point?
assistant
I will depart from Denver, CO-DEN.
user
Sorry, there are no flights currently to your destination.
assistant
Ok, thank you for your response.
user
Thank you for opting us.
assistant