You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you at this moment?

USER: I have to cancel my reservation due to my planned event got cancelled. So please help me with that.

ASSISTANT: Sure, may I know your good name please?

USER: Thank you. Please check the reservation with my name William Evans.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure, take your time.

ASSISTANT: There is no recent reservation found on your name in our records.

USER: Oh! It may not be booked  properly. Anyway, thank you for your time.

ASSISTANT: May be, thank you for reaching us.

USER: Most welcome.