You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my reservation which is done recently due to some problems, can you please help me in this?

ASSISTANT: Sure, I can help you. May I know your name?

USER: Sure, my name is Christine White.

ASSISTANT: Please give me a moment to check your ticket status.

USER: Sure, I will wait.

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

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Anyways, thank you for your service.

ASSISTANT: Welcome.