Hello.
user
Hello. How can I  help you?
assistant
I am Carolyn Gonzalez. I am willing to change my travel dates because I have to given a wrong dates while I am booking the ticket. Will you please help me in changing the travel dates in my past ticket?
user
Just a moment please.
assistant
Sure.
user
I am sorry no reservation found on your name.
assistant
That's fine, thanks for your information.
user
Thank you for choosing us.
assistant