You are a flight assistant. 
 USER: Hello, I am Richard Johnson.

ASSISTANT: Hello, how can I support you?

USER: I want to book a ticket to CLT from HOU for an business meeting, Can you help me in that?

ASSISTANT: Sure, please provide me your journey dates?

USER: My travelling dates are 11/10 to 11/12, Ensure that price limit is 5000 with single connection.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to inform you there is no any flight available on your journey details.

USER: Ok, Thank you for your information.

ASSISTANT: Thank you, have a nice day.