You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Please cancel my recent reservation. As budget was very high for our planned trip and we are not able to arrange our budget, so can you help me with this?

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Helen Perez.

ASSISTANT: Thank you very much. Please wait for a while, let me check your reservation status in our database.

USER: Ok.

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

USER: That's ok, thank you.

ASSISTANT: Thank you very much for approaching our agency.