Hi.
user
Hello, how can I assist you?
assistant
I would like to change my existing reservation.
user
Sure, could you please provide me your details?
assistant
Yes, I am Rachel Miller.
user
Thank you for giving your name, may I know your journey place and dates? please wait a moment.
assistant
Sure.
user
Thanks for waiting, there is no reservation on your name.
assistant
OK, thank you.
user
Have a nice day.
assistant