Hello.
user
Hello. How can I aid you?
assistant
I am Pamela Hernandez. I have to attend a party in the Philadelphia city, can you please help me to reserve a flight ticket from Denver-DEN to PHL?
user
Sure, may I know your planned travel dates?
assistant
Thank you. I would like to travel on the dates of Nov 27 and Nov 29.
user
Do you have any specifications?
assistant
I feel comfortable to travel in a single connecting flight.  So, please provide me a best flight.
user
Sorry, there are no flights available for your desired dates.
assistant
It's ok, not an issue. Thank you for your time.
user
Thank you for reaching us.
assistant
You are most welcome.
user