You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: Can you help me to book a flight ticket from PHX to CLT?

ASSISTANT: Sure, May I know the travelling dates?

USER: I want to take off on 26 Feb and return on 28 Feb.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Nicole Parker.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: It's ok, not a problem,thank you.

ASSISTANT: Thank you for opting us.