You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you at this moment?

USER: I want to cancel my reservation due to cancellation of my journey, can you please help me with this?

ASSISTANT: Sure, I can cancel your reservation right now. Before that I need to know your good name please?

USER: Thank you for accepting my request, I am Margaret Brown.

ASSISTANT: Ok, wait for some time I will check the reservation on your name and get back to you.

USER: Sure, take your own time.

ASSISTANT: We are sorry to say that, there is no active reservation found on your name.

USER: It's ok, thank you for searching.

ASSISTANT: Thanks for approaching us.