You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Myself Donna Walker.

ASSISTANT: Nice to meet you.

USER: I want to cancel my recent reservation, can you help me?

ASSISTANT: Sure, please hold on.

USER: Had your breakfast?

ASSISTANT: Sorry, no reservation found on given name.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for guiding me.