You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your good name?

USER: I am Amy Mitchell.

ASSISTANT: How can I assist you?

USER: Due to some technical issues, the meeting that have to attend got postponed.

ASSISTANT: Ok.

USER: Can you please help me in changing the reservation?

ASSISTANT: Sure, wait a while.

USER: Ok.

ASSISTANT: Thank you for your patience. No reservation found on your name.

USER: It's ok, thank you.

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