You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to book a ticket from DFW to ORD, can you please help me out?

ASSISTANT: Sure, may I know your travel dates?

USER: I am travelling on these dates Dec 31st and Jan 2nd.

ASSISTANT: Do you have any specifications?

USER: I prefer economy class.

ASSISTANT: May I know your name?

USER: George Clark here.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: We found a direct flight with fare 100 with flight number 1010 of JetBlue airlines. Shall I proceed with booking?

USER: Ok, you can proceed.

ASSISTANT: Your booking has been done.

USER: Thank you for your services.

ASSISTANT: Thank you.