You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Lina Campbell. I am planning for an outing at Charlotte, can you book a ticket for me?

ASSISTANT: Sure, can you help me with your journey dates?

USER: Sure. I am planning to start on 10/10 and return back on 10/12.

ASSISTANT: May I know your airport codes?

USER: Search for the flights from IAH to CLT.

ASSISTANT: Sorry, no flights found on your given details.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.