You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Lisa Jones. I would like to cancel my reservation due to my health issues. Can you help me?

ASSISTANT: Sure, I am here to help you. Please be on hold for a moment while I check your reservation status.

USER: Ok, take your own time to check.

ASSISTANT: Lisa Jones, there is no active reservation found under your name in our database.

USER: Oh! That's very sad to know. Thank you for checking anyways.

ASSISTANT: Thank you for contacting us.

USER: Most welcome.