Hello.
user
Hello. How can I assist you?
assistant
I want to attend my friend's marriage for that I reserved the ticket, but right now I am going by with other friends. So that I want change my reservation, can you help me to change my ticket?
user
Sure, give me a moment. Can I know your name for checking the details?
assistant
I am David Allen.
user
Sorry Allen, I couldn't find any reservation on your name.
assistant
It's not a problem. Thank you.
user
You are welcome.
assistant