You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Nicole Walker here. I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Ok, please check with my previous booking.

ASSISTANT: Nicole, there is no reservation found under your name.

USER: Oh! Than's sad to know, thank you for checking anyways.

ASSISTANT: Thank you for contacting us.

USER: Most welcome.