Hello.
user
Hello. How ,may I guide you today?
assistant
I would like to change my existing reservation. Will you help me with this?
user
Sure, I will help you with that.
assistant
Thank you.
user
May I know your name please?
assistant
My name is Donald Walker.
user
Please wait for a minute.
assistant
Sure.
user
I am sorry to say that there is no reservation found under your name.
assistant
Ok, not an issue. May be something went wrong while making the reservation.
user
Thank you for reaching us.
assistant
Anyways, thank you for providing information.
user