You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am willing to book a flight from PHL to LAS, so please help me in booking a flight.

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

USER: My planned dates are on Sept 27th to 29th.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a direct flight.

ASSISTANT: Your good name please.

USER: Sure, my name is Nicholas Martin.

ASSISTANT: We found a direct airline: Hawaiian, flight number: 1025 and price is 200.

USER: That's great, you can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.