You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be a help for you?

USER: I need to change my recent reservation due to my exams, can you help me in doing that?

ASSISTANT: Sure, I'm glad to help you with that. Can you please provide your good name?

USER: I am Jennifer White.

ASSISTANT: Jennifer White, there is no active reservation found under your name to do changes in that.

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

ASSISTANT: Thank you for choosing us.