You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to cancel my reservation due to some problems I am unable to travel those dates, can you please cancel my reservation?

ASSISTANT: Sure, I will help you with this.

USER: Thanks.

ASSISTANT: May I know your name please?

USER: Sure, my name is Emma Collins.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Emma, I did not find any reservation under your name.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: It's my pleasure, have a nice day.