You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I got some urgent work at my place so I have decided to cancel my reservation, can you please help me?

ASSISTANT: Sure, May I know your name to cancel your reservation?

USER: Sure, my name is Helen Jones.

ASSISTANT: Please hold on for a while, let me check your reservation status in our website.

USER: Sure.

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

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for contacting us.