You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I need to change my reservation due to earlier details were wrong so please help me with that.

ASSISTANT: Sure, I will help you. Could you please provide your name to check your reservation status?

USER: Sure, please check the reservation with the name of Joshua Lee.

ASSISTANT: Ok Lee, please be on hold.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name in our records.

USER: It's ok fine. Anyway, thank you for your time.

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

USER: Most welcome.