You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please help me to book a flight ticket from DFW to attend my sister's marriage in SEA.

ASSISTANT: Sure, help me with the trip dates?

USER: I need to depart on 11/02 and my return date will be on 11/04.

ASSISTANT: Do you have any preferences?

USER: I want an economy class ticket.

ASSISTANT: May I know your name please?

USER: I am Timothy Walker.

ASSISTANT: We have an economy class, connecting flight operated by Delta Airlines with a fare of 100. Is it ok for you?

USER: That's fine, you can book the ticket.

ASSISTANT: Your flight ticket has been booked with 1008 number.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for reaching us.