You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Debra Hill here.

ASSISTANT: How can I assist you Debra Hill?

USER: Can you please help me in cancelling my reservation? As my planned trip has been cancelled.

ASSISTANT: Sure, I will help you with this. There is no active reservation found under your name in our database.

USER: That's ok, thank you for your service anyways.

ASSISTANT: Thank you for contacting us.