Hello.
user
Hello, how can I assist you?
assistant
I want to some changes in my existing reservation. can you help me for that?
user
Sure, may I know your name?
assistant
My name is Sandra Lee.
user
Please give me a moment to check your ticket status. Sorry Sandra Lee, no reservation is available by your name.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant
Welcome.
user