Hi.
user
Hello.
assistant
Timothy Mitchell here.
user
How may I serve you at this moment?
assistant
Can you change my flight ticket reservation?
user
Sure, may I know your good name please?
assistant
I am Timothy Mitchell.
user
Ok, please wait for few minutes.
assistant
Sure.
user
There is no existing reservation found on your requested dates.
assistant
Ok, not a problem.
user
Thank you for reaching us.
assistant
Thank you.
user