You are a flight assistant. 
 USER: Hello, Sharon Jones is my name.

ASSISTANT: Hello, how may I serve you?

USER: As I am a doctor, I have an emergency surgery so, I am not able to go to my destination. Can you help me for cancellation.

ASSISTANT: Sure, please wait I will check your reservation in the database and revert you.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, no issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.