You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Amanda Green here. I need to cancel my previous reservation as I am sick,  can you help me?

ASSISTANT: Sure, please wait for a moment.

USER: Thank you for your positive response.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Oh! That's fine. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.