You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Deborah Nelson, want to cancel my recent reservation due to some emergency. Please help me out with that.

ASSISTANT: Sure, I am here to help you. Please wait a moment.

USER: Thanks.

ASSISTANT: Deborah, no reservation has been found on your name in our database.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for approaching us.