You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you now?

USER: I am planning to travel on these days that is on Oct 25 and return on Oct 27. Can you make a reservation for me?

ASSISTANT: Sure, may I know your source and destination location airport codes?

USER: Ok, my airport codes are from JFk to IAD.

ASSISTANT: Please provide your name.

USER: Ok, I am Paul Wilson.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, I am unable to search for the flight on your travel dates and location to reserve a flight ticket for your trip.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: You are welcome and have a nice day.