You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me to change my reservation?

ASSISTANT: Ok, may I know your name?

USER: My name is Laura Lopez.

ASSISTANT: Sorry, I did not find any active reservation on your name to change.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.