You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency, I cancelled my holiday trip. So, please cancel my ticket.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please share your good name?

USER: I am Kenneth Campbell.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: Ok, thanks for the response.

ASSISTANT: Thank you for choosing us.