Hi,.
user
Hello, how may I assist you today?
assistant
I want to change my existing reservation due my joining date has been postponed. Can you aid me with this?
user
Sure, we are glad to serve you.
assistant
Thank you.
user
Please share your name to proceed further?
assistant
I am Sandra Nelson.
user
Ok, please wait a minute, let me check your reservation and revert to you.
assistant
Ok.
user
Thanks for your valuable time, sorry, unfortunately no reservation found with provided name.
assistant
Not really a problem. Thank you for your prompt response.
user
Thank your for picking us, have a pleasant day.
assistant