You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Actually I have planned to attend the client meeting but due to some technical issues the meeting has been postponed. Can you please help me to change it?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: Sure, my name is Thomas Anderson.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Ok, thanks for your assistance.

ASSISTANT: Thank you for reaching us, have a nice day.