Hello, I am Sarah Parker.
user
Hello, how can I serve you today?
assistant
I made a reservation to meet my grand parents but due to an important meeting I want to change my reservation. Can you please help me?
user
Sure. Please wait for a while.
assistant
Sure.
user
Thanks for waiting, there is a reservation found on your name. Please share your journey details.
assistant
My new travelling dates are 03/15 to 03/17. I want to fly from ORD to SFO.
user
Thanks for waiting, there is no flights found on your given dates.
assistant
It's ok, thank you for the information.
user
Thank you for reaching us.
assistant