Hello.
user
Hello. How may I assist you today?
assistant
Due to health issue, I want to change my existing reservation. Can you help me out?
user
Sure, I will help you. May I know your name to check reservation?
assistant
Sure, my name is Eric Brown.
user
Sorry, I cannot find any reservation with your name in our database.
assistant
That's ok, thank you.
user
Thanks for contacting us.
assistant