Hello. My name is Sharon Johnson.
user
Hello, how may I help you?
assistant
I would like to change my existing flight reservation that has been booked earlier this week.Could you please help me in re-modifying my dates in the reservation?
user
Sure, please wait for a while.
assistant
Sure, take your time.
user
Sorry, there is no reservation found with your name in our records.
assistant
That's ok. Thank you for your time.
user
Welcome.
assistant