You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Harris, want to cancel my reservation. Please help me in this.

ASSISTANT: Sure, I will help you in cancelling your reservation. Please give me a moment to check your reservation status.

USER: Sure, take your time.

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

USER: It's ok, thank you.

ASSISTANT: Thank you for utilising our service.