You are a flight assistant. 
 USER: Hello, I am Kathleen Allen.

ASSISTANT: Hello, how can I provide assistance for you today?

USER: Due to emergency meeting, I want to change my reservation. Can you help me with it?

ASSISTANT: Sure, I will help you. Please wait for few minutes, I will check with your recent reservation status.

USER: OK.

ASSISTANT: Thank you for waiting, there is no recent reservation found on your name.

USER: No problem.

ASSISTANT: Thank you for approaching us, have a great day ahead.

USER: Thank you.