Hi.
user
Hello. How can I help you?
assistant
 I would like to change my booking but while change, I need to enter OTP but the mobile which I mentioned while booking was expired two months back. What to do now? Could you please assist me?
user
Ok, on which name can I change reservation?
assistant
You change my reservation on the name John Miller.
user
I am sorry no reservation found on your name. Thank you for choosing us.
assistant
Ok, fine thank you for your help.
user