You are a flight assistant. 
 USER: Hi, I am Kathleen Evans.

ASSISTANT: Hello, how can I aid you today?

USER: My exams got postponed to future dates, can you please change my reservation to new travel dates?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for availing us.