You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Can you please change my reservation?

ASSISTANT: Sure, can you please mention your name.

USER: My name is Brenda Scott.

ASSISTANT: Please wait a moment, let me check with your details.

USER: Sure.

ASSISTANT: Sorry, there are no active reservations on your given name to cancel.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching our service.