Hi.
user
Hello. How can I aid you at this moment?
assistant
Actually, I need to change an existing reservation, can you please help me out?
user
Sure, I am here to help you with that.
assistant
Thank you.
user
May I know your name?
assistant
Sure, my name is Samantha Wilson here.
user
I have found your reservation. May I know your travelling dates?
assistant
Sure, My recent airport codes are LGA and SFO respectively.
user
Could you send me your planned trip dates?
assistant
My planned travelling dates are from Oct, 28 and 30.
user
Ok, may I know your airline preference?
assistant
I would like to fly with big brands airlines.
user
Sorry to say that, there are no flight's available based on your travelling dates.
assistant
Ok, not an issue.
user
Thank you for approaching us.
assistant
Thank you for your information.
user