You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Patrick Garcia. Can you please book a ticket from New York, LGA to Denver, DEN?

ASSISTANT: Sure, can you please share your journey dates?

USER: Journey dates are 10/01 to 10/03.

ASSISTANT: Let me know your price limit?

USER: I can afford up to 200.

ASSISTANT: Do you need any halt in between your journey?

USER: I need a direct flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no flights available on that day.

USER: No problem. Thank you.

ASSISTANT: Thank you for availing us.