Hello.
Hello. May I have your name please?
I am Timothy Walker.
Timothy Walker, how shall I support you?
Owing to an emergency, I would like to change my existing reservation. Can you please help me out?
Sure.
Thank you.
Please wait,  I will check the reservation on your name.
Sure, take your time.
Thanks for waiting. We found that there was no reservation with your name.
Ok, no worries.
Thank you for reaching us.