You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What type of help your looking from our service? I am happy to help you.

USER: I am Margaret Martinez, want to cancel my recent reservation. Will you please help me with that?

ASSISTANT: Sure, I am happy to assist you. Yes, Margaret there is a reservation found on your name in our database and it is cancelled by me.

USER: Great, thank you for your service.

ASSISTANT: Most welcome. Please visit back.

USER: Sure, thank you.