You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Donald Turner.

ASSISTANT: How can I help you?

USER: Can you please help me with cancelling my reservation?

ASSISTANT: Sure, please be on hold.

USER: Sure, take your time.

ASSISTANT: I found your reservation details, shall I cancel it for sure?

USER: Ok, please proceed with cancelling my reservation.

ASSISTANT: I have successfully booked your reservation.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.