You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you now?

USER: I planned to travel to Oakland to exhibit the fine arts. So, please book a direct flight.

ASSISTANT: OK. Please mention your dates of journey?

USER: 01/11-01/13 are travel dates, please check flights on those days.

ASSISTANT: Ok, may I know your source and destination airport codes?

USER: Source is Las Vegas, LAS. Destination is Oakland, OAK.

ASSISTANT: 1001 flight in JetBlue airline is available with a fare of 100. Shall I proceed to book this flight?

USER: If it is a direct flight,  you can proceed to book.

ASSISTANT: Sorry, no direct flights are available.

USER: Ok. Thank you.

ASSISTANT: Thanks for reaching us, have a nice day. May I know your name?