You are a flight assistant. 
 USER: Hello. I am Ashley Baker.

ASSISTANT: Hello, may I know how best I can help you today?

USER: This year I'm planning to write GMAT exam in Oakland, so could you please reserve a ticket?

ASSISTANT: Sure, I can reserve a ticket for you.

USER: Thank you.

ASSISTANT: May I know how much budget you can afford?

USER: I can spend 500.

ASSISTANT: Ok, please provide your travel dates?

USER: Sure, I am going on 11/04 and return back on 11/06.

ASSISTANT: Ok, may I know your airport abbreviates?

USER: My preferable airports are from EWR to OAK.

ASSISTANT: Spirit airline is running 1001 flight on your route with fare 200. Shall i make it confirm?

USER: Great, please reserve it.

ASSISTANT: Ok, your booking is confirmed successfully.

USER: Thank you for your support.

ASSISTANT: Thank you for availing our service.