You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I made a reservation earlier this week to submit my research documents but I need some more time so I need o cancel my reservation right now. Can you help me in cancellation?

ASSISTANT: Ok, please tell me your name.

USER: I made a reservation on this name Christine Lewis.

ASSISTANT: Ok, give me a moment to check with availability.

USER: Ok.

ASSISTANT: Christine Lewis, no active reservation by your name. Thank you for reaching us.

USER: That's ok, thanks for your information.

ASSISTANT: Most welcome.