You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Due to health issues, I would like to cancel my trip. Can you please cancel my reservation?

ASSISTANT: Sure, I will help you with that. May I know your name for checking your previous reservation status?

USER: My name is Sandra Phillips.

ASSISTANT: Just give me a moment, I will check your previous reservation status.

USER: Ok, take your time.

ASSISTANT: There is no previous reservation found under your name.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you contacting us, have a nice day.