You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Can you please book a flight ticket from CLT to AUS for my business meeting?

ASSISTANT: Sure, I am here to help you with that. Can I know your travelling dates?

USER: Thank you for accepting my request, my departure is on Apr 17 and please book my return ticket on Apr 19.

ASSISTANT: Do you have any other requirements?

USER: I will prefer single connection for my journey.

ASSISTANT: May I know your name?

USER: Sure, my name is Nicholas Young.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, there is no flight found on your name in our database.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.