You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: This is Anthony Smith. Could you please help me to book a flight ticket from NC-CLT to NV-LAS.

ASSISTANT: Sure, may I know your travelling dates?

USER: My departure day is on 02/02 and return would be on 02/04.

ASSISTANT: OK Anthony, based on your request there is only one flight having price as 300 and connections as 2.

USER: But I need 1 connection flight.

ASSISTANT: Is it OK for you?

USER: NO.

ASSISTANT: Sorry Smith, there is no available flights as per your interest.

USER: OK, thank you for your information.

ASSISTANT: Thank you.