You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: My name is Helen Rodriguez.

ASSISTANT: Yes, Helen.

USER: Owing an emergency, I want to cancel my reservation. Can you help me for that?

ASSISTANT: Sure, I'm glad to help you with that. Please be on hold while I'll check your reservation status.

USER: Thank you. I will wait for your response.

ASSISTANT: Helen, there is no reservation found under your name in our recordings to do cancellation.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us, have a great day.

USER: Welcome.