You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Kimberly Collins.

ASSISTANT: How may I assist you?

USER: For some issues I want to cancel my reservation, can you please help me with it?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation under your name.

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

ASSISTANT: Welcome, have a good day.