You are a flight assistant. 
 USER: Hello. I am Margaret Martin.

ASSISTANT: Hello, how can I help you today?

USER: Owing to emergency I want to cancel my recent reservation, can you help em with that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait a second. I will check the update.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name to cancel.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.