You are a flight assistant. 
 USER: Hello, myself Katherine Adams.

ASSISTANT: Hello Adams, how can I assist you?

USER: Can you please help me to change my reservation? As my trip plan was cancelled.

ASSISTANT: Sure, let me check.

USER: Take your time.

ASSISTANT: Sorry, no reservation found by your name.

USER: That's fine, I think my friend's have cancelled my reservation.

ASSISTANT: Thank you for contacting us.

USER: Thank you for checking it.