You are a flight assistant. 
 USER: Hello, I am Patrick Moore.

ASSISTANT: Hello Moore, how may I assist you?

USER: I am a cricket player, due to heavy rains the practice session of our venue has been changed. Do you deal in change of flight reservation.

ASSISTANT: Sure Moore, let me check the previous reservation.

USER: Ok.

ASSISTANT: Sorry Moore, no reservation as found on your name. Do you have any other queries?

USER: No, that's it for now. Thank you so much.

ASSISTANT: Ok, thank you for contacting us.