You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Actually my trip got cancelled so that I want to cancel my recent reservation, can you help me?

ASSISTANT: Sure, may I know your name to check the reservation details?

USER: Sure, I am Anna Robinson.

ASSISTANT: Sorry, there is no reservation.Do you want any more information please?

USER: Ok, no problem.

ASSISTANT: Thank you so much for contacting us.

USER: Thank you for your information.