You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to change my reservation as my orientation day program got postponed. Can you help me?

ASSISTANT: Sure, please share your good name?

USER: I am Ryan Wilson.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, sorry no reservation found on your name.

USER: Ok fine, thanks for checking.

ASSISTANT: Thank you for choosing us.