You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to book a flight ticket to attend a robotic workshop at Oakland, can you help me to book an business class ticket?

ASSISTANT: Sure, can you please share your journey dates?

USER: Yes, my travelling dates are 02 and 04 of Feb.

ASSISTANT: May I know your starting point?

USER: Yes, it is AUS.

ASSISTANT: Are you looking for any preferred connections?

USER: Yes, I need a connecting flight.

ASSISTANT: Can I have your name to proceed further?

USER: My name is Melissa Garcia.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I prefer to travel in well known airlines. Kindly check for it.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.