You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you now?

USER: I want to cancel my reservation, to attend the funeral of my great grandfather and need to stop my trip. Can you help me with that?

ASSISTANT: Sure, may I know your good name please?

USER: Ok, I am Cynthia Lewis.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry to notify that there is no active reservation found on your name.

USER:  Ok, not a problem. Thanks for your instant response.

ASSISTANT: Thanks for contacting us, have a good day.