You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Pamela Harris here.

ASSISTANT: Welcome to Global Agency. What can I do for you today, Pamela?

USER: I will be cancelling my previous reservation due to terrorist attack in New York, can you help me?

ASSISTANT: Sure, I will help you with that. Please be on hold, let me check with your details.

USER: Sure.

ASSISTANT: Sorry Pamela, I did not found any reservation showing active in our database.

USER: No issues with it, that's ok. Thanks for checking.

ASSISTANT: You are most welcome. Thank you for contacting us.

USER: You are welcome.

ASSISTANT: Have a nice day.