You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel recent reservation due to an emergency, can you please help me out?

ASSISTANT: Sure, I am here to help you for this. May I know your name please?

USER: Sure, my name is Karen Perez here.

ASSISTANT: Just a moment, let me check your reservation status in our records.

USER: Sure, I will wait.

ASSISTANT: Sorry for inconvenience, no reservation is found under your name.

USER: Ok, not an issue.

ASSISTANT: Thank you very much for contacting our agency.

USER: Thank you for your information.

ASSISTANT: You are welcome.