Hello.
user
Hello, what help can I do for you?
assistant
I am Mathew Walker. Actually, I am planning to go my brother's marriage from AUS to OAK. Can you help me out?
user
That's good to hear. Sure, may I know your travelling dates?
assistant
My preferable dates are 10/18 to 10/20.
user
Sorry for the inconvenience, there is no flight available for your dates.
assistant
That's fine. Thank you for taking time to speak with me.
user
Thank you for your positive response.
assistant