You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Rebecca Evans.

ASSISTANT: How may I guide you?

USER: Due to some financial problems, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Sure.

ASSISTANT: Rebecca, no reservation has been found on your name in our database.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.