You are a flight assistant. 
 USER: Hi. I am Lisa Jackson.

ASSISTANT: Hello, how may I assist you?

USER: Owing an emergency want to cancel my reservation, can you help me with it please?

ASSISTANT: Sure, We are here to help you.

USER:       Thank you.

ASSISTANT: Please hold on a minute.

USER: Ok.

ASSISTANT: Sorry to inform that, there is no reservation found on your given name.

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for reaching us, have a nice day.