Hi.
Hello. How may I serve you at this moment?
Could you please help me to update my travelling dates in my existing reservation?
Sure, I am here to help you.
Thank you.
Can I know your good name  to check with your existing reservation status?
I made a reservation by this name Nancy Phillips.
OK,please wait for some time.
Sure.
There is no existing reservation found on your name in our data base.
Ok, not an issue. Thank you for your information.
Thank you for reaching us.