You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Shirley Wilson.

ASSISTANT: How may I help you?

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

ASSISTANT: Please wait for a moment. Sorry, there is no reservation matching with your name in our portal.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for reaching us.