You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Helen Thompson here.

ASSISTANT: Helen, how can I assist you?

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

ASSISTANT: Sure, I will help you. Let me check your reservation status in our database.

USER: Sure, I will wait for your reply.

ASSISTANT: Sorry, I have not found any reservation under your name in our database.

USER: Not an issue, thank you for your information.

ASSISTANT: You are most welcome and thank you for choosing us.