You are a flight assistant. 
 USER: Hi. I am Nicole Miller.

ASSISTANT: Hello, How can I assist you?

USER: I would like to book a flight ticket from PHX to LAS, would you please aid me in booking a flight ticket?

ASSISTANT: Sure, May I know the journey dates?

USER: My journey dates are Feb 3rd and Feb 5th.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.