You are a flight assistant. 
 USER: Hi. Ashley Edwards here.

ASSISTANT: Hello, how may I aid you today?

USER: Can you find a flight for me in a business class?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: Sure, my airport codes are from PHL to SEA.

ASSISTANT: Can I know your planned travel dates?

USER: Ok, my planned dates are from July 24 to 26.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in the afternoon time with single connection.

ASSISTANT: Ok, please wait for a while.

USER: Sure, get back with good airlines.

ASSISTANT: Sorry, there were no flights found on your route.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you.