You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Could you help me in booking a flight ticket from DFW to LAS?

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

USER: I will start on Oct 25, return on Oct 27.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found a direct airline: JetBlue, flight number: 1021 and price is 200.

USER: Please book the ticket with the name of Thomas Brown.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.