You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to attend a musical event at Oakland, can you help me to book a flight ticket from PHL to OAK?

ASSISTANT: Your travelling dates please?

USER: I want to take off on 17 Feb and return on 19 Feb.

ASSISTANT: Do you need connection flight?

USER: I would like to travel with single connecting flight.

ASSISTANT: Is there any thing else?

USER: No.

ASSISTANT: There is a flight with single connection in Delta airlines, can I proceed for booking in 1003 flight?

USER: Please proceed to booking.

ASSISTANT: On which name can I proceed for booking?

USER: I am Thomas Hill.

ASSISTANT: Your booking is done in economy class.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.