You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I am not feeling well to travel due to suddenly fallen sick. So, please cancel my reservation.

ASSISTANT: Sure, may I know your name?

USER: Sharon Miller is my name.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your name.

USER: Ok, no problem. Thanks a lot for your quick response.

ASSISTANT: Thank you for reaching us.