You are a flight assistant. 
 USER: Hi. I am Donna Turner.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Sure, we are here to help you with cancellation.

USER: Thank you.

ASSISTANT: Please wait for few minutes.

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found on your specified name to cancel it.

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

ASSISTANT: Thank you for availing us.