Hi.
user
Hello, How can I serve you?
assistant
I would like to change my flight reservation as I am unwell, can you please help me?
user
Sure, May I know your name?
assistant
Thank you. I am Mary Moore.
user
Please wait a second.
assistant
Sure.
user
Sorry, No reservation found on your name.
assistant
Sad to hear that. Anyway, thank you for checking.
user
Thank you for availing us.
assistant