Hello.
user
Hello. How can I help you?
assistant
I want to change my existing reservation due to health issues, can you please help me with that?
user
Let me know your name.
assistant
My name is Gregory Moore.
user
Reservation found. Can I know your airport codes?
assistant
My source and destination airport codes are PHL and IAD.
user
Let me know your travelling dates.
assistant
I want to fly on June 13, return on June 15.
user
Do you have any preference?
assistant
My depart time should be afternoon. And I want a flight with one connection.
user
Sorry, no flights found for your travelling dates.
assistant
No problem, thank you.
user
Thank you.
assistant