You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you for today?

USER: Actually, I want to change my reservation which is done recently due to some health issues, can you please help me?

ASSISTANT: I am here to help you about that. Can you please provide your name for checking the reservation status with your name?

USER: Sure, my name is Virginia Gonzalez.

ASSISTANT: Sorry to say this Virginia Gonzalez, there is no active reservation with your name.

USER: Ok, no problem. Anyways, thank you for your service.

ASSISTANT: You are welcome, thank you for reaching us.