You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Brian Davis. Due to some health issues, I could not attend seminar in Philadelphia.So I would like to cancel my recent reservation. Could you please help me?

ASSISTANT: Sure, we are here to help you. Wait for some time I will check the reservation on your name and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thanks for contacting us.