You are a flight assistant. 
 USER: Hi, I am Samuel Moore.

ASSISTANT: Hello, what can I do for you?

USER: I need to book a flight ticket from Charlotte CLT to enjoy sports festival. Can you make a reservation with fare 5000?

ASSISTANT: May I know you travelling dates?

USER: Sure, I need to fly on 05/17 and 05/19.

ASSISTANT: Can you please share destination airport?

USER: Sure, my landing point is Austin AUS.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: I am sorry to inform that there is no flight available at this moment.

USER: Ok, not an issue. Thank you for your assistance.

ASSISTANT: Thank you for checking with us.