You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to travel from SEA to PHL as a holiday trip.

ASSISTANT: Sure, we are here to help you. May I know your travel dates?

USER: Thank you. My journey dates are 07/26 and 07/28.

ASSISTANT: Do you need any way station in your journey?

USER: I need only direct flight.

ASSISTANT: May I know your depart and arrival time?

USER: I am comfortable with any timings.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Benjamin Walker here.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

USER: No issue, Thanks for the information.

ASSISTANT: Thank you for reaching us.