Hello.
user
Hello. How may I serve you?
assistant
Myself Jack Williams, due to some urgent seminars. I am going to change reservation. Can you please help me in changing the reservation?
user
Sure, I will help you in change of flight reservation. Please wait for a moment.
assistant
Sure, I will wait for your response.
user
Thanks for waiting. But I am sorry to say that there is no flight reservation on your name to change it.
assistant
Not a big deal, anyhow thank you very much for your service.
user
Thank you.
assistant