You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Angela White. I would like to cancel my reservation due to my planned programme got cancelled. Can you please help me with that?

ASSISTANT: Ok, sure please wait a moment.

USER: Sure, take your time.

ASSISTANT: No reservation found on your name Angela White.

USER: Oh! May be I am wrong. Thank you for your information.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.