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

ASSISTANT: Hello, how can I serve you?

USER: I am planning to attend my friend birthday party, can you please book me a flight ticket? My origin is from NC - CLT to TX - HOU.

ASSISTANT: Sure, May I know your journey dates?

USER: My travelling dates are from 08/12 to 08/14. Make sure that the price limit is 1000 with one connection.

ASSISTANT: Please wait a moment, I will check the availability and let you know.

USER: Sure.

ASSISTANT: Thank you for waiting, We found no flights based on your given information. Thank you for availing us, Hope to serve you again.

USER: Ok, no issues.

ASSISTANT: Have a nice day.

USER: Thanks for your service.