You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Helen Thomas.

ASSISTANT: How can I help you?

USER: I want to cancel my reservation, due to financial issues, can you help me?

ASSISTANT: Just a moment please.

USER: Sure.

ASSISTANT: I am sorry no reservation found on your name.

USER: That's ok, I will check for other alternative.

ASSISTANT: Thank you for choosing our service.

USER: Thank you for your information.