Hi.
Hello. What service you are expecting from our travel agency?
I am Lisa Jones, can you help me for changing my existing reservation?
Sure, I will help you.
Thank you.
Please provide me some time to check the ticket status.
Ok, I will wait for your reply.
Sorry, there is no reservation found on your name in our database to modify.
Oh! It's ok, no problem. Thank you for your services.
 Thank you for reaching us. You are welcome.