Hello.
user
Hello.
assistant
I am Brian Lopez.
user
Brian Lopez, how may I aid you?
assistant
I want to change my existing reservation because my health condition was not good, can you help me?
user
Sure, please give me a moment to check your ticket status.
assistant
Sure, take your own time.
user
Sorry, no reservation is available by your name.
assistant
It's ok, not a problem.Thank you for checking.
user
Thank you for choosing us.
assistant