You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, may I know your name please?

USER: Kimberly Roberts.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for opting us.