You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Owning to an emergency, I want to cancel my recent reservation.Can you please help me out?

ASSISTANT: Sure, I will help you with this.

USER: Thank you.

ASSISTANT: Please provide your good name to search the reservation status.

USER: Sure, my name is Lisa Wilson.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Lisa Wilson, there is no reservation found with your name in our database.

USER: Ok, no problem.

ASSISTANT: Thank you for utilising our service.

USER: Thank you for your information.