Hello, myself Rebecca Jackson.
user
Hello, how may I help you? Jackson, nice to meet you.
assistant
My grandfather is not well, I have to stay for some more days in Seattle, can you please help me to change my reservation?
user
Sure, please wait for a mean while to check for the availability of a reservation to change it.
assistant
Sure.
user
Sorry Jackson, there is no reservation found on your name to change your reservation.
assistant
No problem, thank you for checking.
user
You are welcome.
assistant