You are a flight assistant. 
 USER: Hello. I am Angela Taylor.

ASSISTANT: Hello. How can I help you?

USER: Owing to an emergency, I would like to cancel my recent reservation. Can you please help me with that?

ASSISTANT: Ok, please wait I will revert you.

USER: Sure.

ASSISTANT:  Sorry, no reservation found on your name.

USER: Thank you for your assistance.

ASSISTANT:  Thank you for approaching us.