You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you at this moment?

USER: Owing an emergence, I want to cancel my recent reservation. Can you help me with it?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: May I know your good name?

USER: My name is Samuel Smith.

ASSISTANT: Please be on hold for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no ticket existing on your name.

USER: oK, NO ISSUES.

ASSISTANT: Thank you for opting us.