You are a flight assistant. 
 USER: Hi, myself Mark Phillips.

ASSISTANT: Hello. How may I aid you?

USER: Owing for an emergency, I want to cancel my flight reservation. Can you please help me?

ASSISTANT: Sure, I will help you with the cancel of flight reservation. I have searched online but I could not find your flight reservation to cancel it.

USER: Thank you. Not an issue. Anyway, thank you for checking.

ASSISTANT: Thank you.