You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a flight from PHL to LAS?

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

USER: My planned travel dates are Jan 16th and Jan 18th.

ASSISTANT: May I know your connection limit?

USER: Yes, I need a connection limit.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Your good name please.

USER: Karen Campbell.

ASSISTANT: We found a direct airline: American Airlines, flight number: 1000 and price is 100.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.