You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What type of help that you are expecting from our travel agency?

USER: Owing to an emergency, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Yes, I am glad to help you with the ticket cancellation process.  May I know your name please?

USER: My name is Katherine Johnson.

ASSISTANT: Ok, please be on hold for a minute.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no active reservation found with your name to cancel.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: You are welcome. Thank you for opting us.