You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: I would like to cancel my reservation due to sudden emergency. Can you help me?

ASSISTANT: Yes, I can help you? Can I have your name please to check the details?

USER: My name is Dennis Martinez.

ASSISTANT: Please be on hold while I am checking.

USER: Ok.

ASSISTANT: Dennis, there is no active reservation found under your name.

USER: That's fine, thank you for the information.

ASSISTANT: Can I help you with anything else?

USER: No, thank you.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.

USER: Welcome.