You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am travelling on these dates April 4th and 6th.

ASSISTANT: May I know your connection limit?

USER: I need single connected flight.

ASSISTANT: Is there any class preference for you?

USER: I don't have any other preferences.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: United Airlines, flight number: 1023 and price is 100 with one connection.

USER: Ok, you can proceed.

ASSISTANT: Your good name please.

USER: Gregory Hall here.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your services.

ASSISTANT: Thank you for reaching us.