Hi.
user
Hello, how may I help you?
assistant
My name is Kathleen Walker. I want to visit Philadelphia, can you make a reservation at 09/02 and return to my location on 09/04?
user
Can you please tell me your location codes?
assistant
The airport codes are from LAS to PHL.
user
 Sorry, unfortunately there is no flights available running on your route, you need to look for any other airport nearby.
assistant
That's ok. Thank you for your help.
user
It's my pleasure. Welcome.
assistant