You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER:  I would like to cancel my recent reservation because my health condition was not good, can you help me?

ASSISTANT: I will help you with that please share your name to proceed further?

USER: Melissa Roberts here.

ASSISTANT: No reservation as per your preferences at the moment in our database.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you.