HI.
user
Hello.
assistant
I am Charles Collins.
user
How may I serve you today?
assistant
Due to sudden change in my trip to another location, I would like to change my reservation. Can you please help me out?
user
Sure, I'll help you with this. Could you please provide your name to check your previous reservation status?
assistant
Thank you. I made a reservation on Charles Collins.
user
Please wait a moment I will check and revert to you.
assistant
oK.
user
Thanks for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
No issue. Thank you.
user
Thanks for choosing us.
assistant