You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to change my reservation because I have given wrong details earlier so please help me with that.

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Sure.

ASSISTANT: Meanwhile, may I know your name?

USER: Sure, myself Richard Martin.

ASSISTANT: No reservation found on your name. Sorry for inconvenience.

USER: Oh! May be booking is not done properly.

ASSISTANT: Ok.

USER: Thank you for your time.

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