You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Wilson.

ASSISTANT: How can I help you?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me that?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform that there is no reservation done on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your information.