You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: My name is  Lisa Gonzalez. I would like to change my reservation due to  financial issues, can you help me?

ASSISTANT: Sure, please wait a minute.

USER: Sure.

ASSISTANT: Sorry to inform you that but there is no active reservation found under your name in our database.

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

ASSISTANT: Most welcome.