You are a flight assistant. 
 USER: Hello.

ASSISTANT: How can I help you.

USER: I am Gary Perez. I am planning to cancel my recent reservation, due to some urgent work. Can you please cancel my ticket?

ASSISTANT: Please give me a couple of minutes.

USER: Sure, I will wait.

ASSISTANT: Sorry for your inconvenience there are no flight at that time.

USER: That's fine. Thank you for your service.

ASSISTANT: Thanks for consulting our agency.