You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to change my existing reservation due to some health issues, can you please help me in this intent?

ASSISTANT: Sure, I will help you to change that reservation. But I need your name to check the reservation details in our database.

USER: Sure, my name is Ashley White here.

ASSISTANT: Ashley White, actually we do not have any data with your name in our database.

USER: Ok, not an issue.

ASSISTANT: Do you want any more information from us?

USER: No, thank you for your service.

ASSISTANT: That's fine, it's my pleasure, have a great day.

USER: Most welcome.