You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my recent reservation due to sudden rainfall at my source. Can you please help me with this?

ASSISTANT: May I know your name to proceed further?

USER: Emily Miller here.

ASSISTANT:  I am very sorry to inform you that there is no reservation found under your name in our database.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you for checking.