You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Roberts.

ASSISTANT: How may I help you today?

USER: Can you please help me to book a flight from LAX to OAK?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my journey dates are May 12 and May 14.

ASSISTANT: May I know your budget for this trip?

USER: My budget is 200.

ASSISTANT: Please hold a moment.

USER: Ok, take your own time.

ASSISTANT: There is a flight with one connection and the price is 100 in UA airlines, can I proceed with the reservation?

USER: Ok, please proceed for booking.

ASSISTANT: Thank you for booking flight ticket with our service.

USER: Thank you for your service.

ASSISTANT: You are welcome.