You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I am Patrick Phillips, want to cancel my recent reservation due to some emergency. Please help me out with that.

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: Patrick Phillips, there is no active reservation found under your name in our database.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for contacting us.