You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I'm Mary Robinson. I want to visit my client office at Las Vegas, can you book a ticket from DFW to LAS?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: Yes, my planned departure and return travel dates are 10th and 12th of July.

ASSISTANT: Do you have any other preferences?

USER: Yes, my connection limit is 1.

ASSISTANT: You have a flight 1007 in Delta airline and price 100 with a connection, Shall I proceed to book?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you so much for your help.

ASSISTANT: Thank you.