You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Could you please check the flight availability in economy class?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travel dates are May 03 and May 05.

ASSISTANT: Could you please provide the airport codes?

USER: I am heading to PHL from SEA.

ASSISTANT: May I know your name please?

USER: My name is Nancy Allen.

ASSISTANT: There is a connecting flight in Southwest airline, can I book it?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been booked with flight number 1006.

USER: Thank you.

ASSISTANT: Thank you for approaching us.