Hi.
user
Hello. How can I assist you?
assistant
I am Alexander Baker, can you help me for changing my existing reservation, because in my previous reservation I gave wrong airport codes?
user
Sure, please give me a minute.
assistant
Ok, I will wait for your reply.
user
Sorry Baker, there is no reservation available on your name.
assistant
Oh! It's ok, no problem. Thank you for your services.
user
You are welcome.
assistant