You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me with cancelling my previous booking?

ASSISTANT: Sure, I am here to assist you.

USER: My booking was done by the name of Sandra Moore.

ASSISTANT: Ok, please wait for a moment.

USER: Please check my previous booking status and let me know.

ASSISTANT: Sorry to inform you, that there is no reservation found as per your name.

USER: Oh! That's sad to know. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us with a query.

USER: Welcome.