You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Nicole Roberts.

ASSISTANT: How may I help you?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me.

ASSISTANT: Sure, I will help you. Nicole, no reservation has been found on your name in our database.

USER: Its ok, I think I made a mistake while booking. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.