You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Can you help me in modification of my reservation as my health is not good?

ASSISTANT: Sure, I will help you in changing the ticket. May I know your name please?

USER: Thank you for considering my request. My name is Michelle Evans.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.