You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me in that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can I have your good name please to check your reservation status?

USER: Jack Johnson here.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry Jack Johnson, no reservation has found under your name to cancel.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us, have a good day.