Hello. I am Kathleen Miller.
user
Hello, how may I help you today?
assistant
Can you please book a flight ticket from OAK to LAX?
user
Sure, may I know your dates of journey please?
assistant
My travelling dates are Sept 10th and Sept 12th.
user
May I know your class preference please?
assistant
I will prefer to travel in an economy class.
user
Do you have any other specifications please?
assistant
The depart time should be evening.
user
Sorry, there is no flight found as per your travelling details.
assistant
Ok, no worries at all. Thank you.
user
You are welcome.
assistant