Hello.
user
Hello. How can I help you?
assistant
I have to change my flight ticket reservation due to some wrong dates while I was booking, can you help me in changing my flight ticket?
user
Ok, please mention your good name.
assistant
My name is Samantha Garcia.
user
Please be hold on for  a moment.
assistant
Sure.
user
Sorry Garcia, no reservation found by your name in our website.
assistant
Ok, that's fine, thank you for your help.
user
It's my pleasure, have a good day.
assistant