Hello, I am Jack Wilson.
user
Hello, how may I amend you today?
assistant
I have done a mistake while reserving a flight ticket yesterday, could you please help me with modifying my existing reservation?
user
Sure, Please wait for a while.
assistant
Sure.
user
Thank you for your time, there is no reservation found on your name.
assistant
No problem, thank you for the information.
user
Thank you for choosing our agency.
assistant