Hello.
user
Hello, what help  you are expecting from us?
assistant
I have planned to go for a trip but it is postponed for another dates, can you please help me to change my existing reservation?
user
Sure, I will help you. Please tell me your good name, so that I can check the existing reservation?
assistant
Ok, I am Frank Martinez.Can you please check out with that?
user
Sure, I will check. Please give me a moment.
assistant
Ok, but please make it fast.
user
Sorry Frank, there is no reservation under your name.
assistant
Ok, thank you.
user
Thank you for approaching us. Hope you will reach us in the future. Have a good day.
assistant