You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to cancel my reservation due to my planned programme got cancelled so please help me with that.

ASSISTANT: Ok, I can help you with that.

USER: Thank you.

ASSISTANT: Can you please share your name so that I can check with your reservation?

USER: Sure, please check the reservation with the name of Anna Robinson.

ASSISTANT: Ok, please give me a moment to check.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you but there is no reservation found under your name Anna Robinson.

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

ASSISTANT: Thank you for choosing our agency.

USER: Anyway, thank you for your time.

ASSISTANT: Have a great day.