You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Matthew Moore.

ASSISTANT: How can I help you today?

USER: I would like to meet my childhood friend at Los Angeles, please help me in booking a ticket from OAK to LAX.

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My planned travel dates are on Aug 13 and Aug 15.

ASSISTANT: May I know your departure time and arrival time?

USER: My depart and return time is in morning.

ASSISTANT: Do you have any class preference?

USER: Any class is comfortable for my trip.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there is no flight matching your requirements on your given dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: You are welcome, have a nice day.