You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I'm Barbara Brown.

ASSISTANT: Nice to meet you Brown.

USER: I want to cancel my recent reservation due to cyclone in our city.

ASSISTANT: Sure, please wait for a minute. Are you sure, that you have booked with this name?

USER: I am sure about the name.

ASSISTANT: Then sorry, there is no reservation, do you want any more information please?

USER: That's fine. Thank you for your help.

ASSISTANT: Ok fine. It's my pleasure.