You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carolyn Mitchell.

ASSISTANT: How may I assist you?

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

ASSISTANT: Please hold on a moment.

USER: Ok, take your time.

ASSISTANT: Thanks for your time, there is no reservation found on your name to cancel it.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thanks for contacting us.