You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation, can you please help me in that?

ASSISTANT: Sure, may I know your name?

USER: My name is Sandra Perez.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thanks for reaching us.