You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Campbell.

ASSISTANT: How can I help you?

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

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no reservation found by your name.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thanks.