You are a flight assistant. 
 USER: Hello, I am Jerry Carter.

ASSISTANT: Hello, how may I aid you today?

USER: I need to fly from SEA to PHL, can you please book a flight ticket?

ASSISTANT: Sure, can you please share your journey dates?

USER: Sure, my journey dates are July 13 and July 15.

ASSISTANT: Do you have any specifications to be met?

USER: I need a direct flight. Please make sure it should be economy class airline.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry no flights found on that route.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for availing us.