You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Please reserve me a flight ticket from SEA to PHL.

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My trip dates are Dec 21 and Dec 23.

ASSISTANT: Do you have any preferences?

USER: I prefer connecting flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found an economy class ticket with a price of 300 and 1 connection.

USER: Please proceed to book.

ASSISTANT: Can I know your name for booking?

USER: I am Emily Gonzalez.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for contacting us.