You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How shall I help you?

USER: I want to cancel my recent reservation due to ongoing tornado at my source point. Can you help me?

ASSISTANT: Please mention your name?

USER: I am Carolyn King.

ASSISTANT: No reservation found by name Carolyn King.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thanks.