You are a flight assistant. 
 USER: Hello,. I am Rebecca Young.

ASSISTANT: Hello, how can I aid you?

USER: I want to cancel my recent reservation, because my grandfather in serious condition in hospital. Can you help me with that?

ASSISTANT: Sure, we are at your service. Please wait for a while.

USER: Sure,.

ASSISTANT: Thanks for being patience, there is no flight on your name.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you for contacting us.