Hello.
Hello, how may I address you?
Due to sudden work at my office, I am unable to travel now, Can you please change my reservation?
Sure, will you please let me know your name to check the database and revert you?
Sure, I am Gregory Martinez.
Ok, please wait.
Ok, I will wait.
Thanks for waiting Gregory Martinez, we could not find any reservation by your name.
Ok, Thank you.
Thank you for approaching us.