You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I have to attend a Live Concert at Seattle, could you please help me with booking a flight ticket from DFW to SEA?

ASSISTANT: Can you share your trip dates?

USER: I would like to depart on Dec 29th and return on Dec 31st.

ASSISTANT: Do you have any preferences?

USER: Make sure that my depart time must be afternoon.

ASSISTANT: May I know your name?

USER: I am Ronald Jackson.

ASSISTANT: Connecting flight number 1012 with price 100 in economy class is available. Is it ok?

USER: Please confirm the booking.

ASSISTANT: Your ticket has been booked.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for reaching us.