You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Brian Martin here.

ASSISTANT: Brain, how may I aid you today?

USER: In my office, I have some urgent meeting. So, I am unable to catch my flight. Can you cancel my ticket?

ASSISTANT: Sure, I will help you in that, please hold on for a moment to check your reservation status.

USER: sure, take your time.

ASSISTANT: Martin, there is no any active reservation with your name in my database.

USER: It's ok. Anyway, thank you for checking.

ASSISTANT: It's my pleasure, have a nice day.