You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you?

USER: I am Kimberly Johnson. I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I am here to help you. Please give me a moment to check your ticket status.

USER: Sure.

ASSISTANT: Sorry, no reservation is available by your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.