You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Helen Smith.

ASSISTANT: How may I guide you?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Please be on hold for a moment.

USER: Sure.

ASSISTANT: I have checked your status and it is showing that no booking is done previously on your name.

USER: No problem, thank you for the information.

ASSISTANT: You are most welcome and have a nice day.