You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Please assist me to book a connecting flight to Philadelphia to take a part in scuba driving at Evans river.

ASSISTANT: Sure, Can I know your travelling dates?

USER: Sure, I need to reach PA on 10/09 and my return date will be on 10/11.

ASSISTANT: Please share me your airport codes.

USER: My source and destination airport codes are SEA and PHL.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: I want to fly in economy class for this time.

ASSISTANT: May I know your name?

USER: I am Rachel Thompson.

ASSISTANT: Please be on hold for sometime, as I can check a flight for your journey with the best airlines.

USER: Sure.

ASSISTANT: We found a connecting flight with an Delta airlines, flight number:1005.

USER: That's perfect, you can book the ticket with this airline.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you for your kind service in booking.

ASSISTANT: Thank you for choosing us.