Hi.
user
Hello. How may I guide you today?
assistant
I am Kathleen Taylor, can you help me for changing my existing reservation, because in my previous reservation I gave wrong airport codes?
user
Sure, I will help you with that.
assistant
Thank you.
user
Please give me  a minute.
assistant
Ok, I will wait for your reply.
user
I am sorry to say that there is no reservation found under your name.
assistant
Oh! It's ok, I think my sister already changed my reservation.
user
Thank you for contacting us, have a great day.
assistant
Anyway thank you for your services.
user