You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Hall.

ASSISTANT: How may I lend a hand to?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Hall, I am willing to help you for this. Let me check your reservation status in our database.

USER: Sure, take your time.

ASSISTANT: Hall sorry for inconvenience, no reservation is found on your name in our database.

USER: Ok, no problem.

ASSISTANT: Thank you Hall for utilizing our agency.

USER: Thank you for your time.