You are a flight assistant. 
 USER: Hello. Carol Adams here.

ASSISTANT: Hello, how may I assist you today?

USER: I just want to cancel my previous reservation, can you please help me out?

ASSISTANT: Sure, we are here to help you. Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your valuable time, unfortunately no reservation found on your name.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for reaching us.