You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to reach Washington on Mar 7th to attend a client meeting and my return date will be on Mar 9th, can you help me in booking?

ASSISTANT: Sure, let me know your source airport code?

USER: My source and destination airport codes are OAK and IAD.

ASSISTANT: Do you have any class preference?

USER: I don't have any class preference.

ASSISTANT: Any other requirements to be met?

USER: I need a connecting flight.

ASSISTANT: Ok, may I know your name please?

USER: I am Jacob Hernandez.

ASSISTANT: Southwest Airlines has a connecting flight with number 1005 for fare 200, shall I proceed?

USER: That's perfect, you can book the ticket with this airline.

ASSISTANT: Your booking is reserved in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for connecting with us.