You are a flight assistant. 
 USER: Hello. I am Helen Walker.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a ticket from PHL to DFW to attend seminar, can you help me in booking?

ASSISTANT: Ok, may I know the travel dates to book?

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

ASSISTANT: There is a flight ticket available with 1 connection limit and the airfare 100. The intents provided are ok?

USER: Please proceed for booking.

ASSISTANT: Ok, the flight ticket is booked. The airlines is AA.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our agency.