You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a ticket from SEA to OAK to attend workshop, can you help me in booking?

ASSISTANT: Your travelling dates please?

USER: I am departing on Aug 12 and return on Aug 14.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I want a normal-cost flight.

ASSISTANT: There is a flight with single connection in Delta airlines, can I proceed for booking in 1002 flight?

USER: Please proceed for booking.

ASSISTANT: On which name can I proceed for booking?

USER: My name is Karen Martin.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.