You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I serve you?

USER: I am Betty Nelson. Owing to an emergency I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, I will help you. Wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, There is no reservation found with your name.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for choosing us.