You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I have planned to go for AUS, but my plan got cancelled.Can you plase help me to cancel my reservation? I have reserved my ticket on name Andrew Hall.

ASSISTANT: Sure, I will help you. Please give me a moment to check your details in my records.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name in my database.

USER: Ok, fine thank you for your information.

ASSISTANT: You are welcome.