You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Justin Lopez here. I want to travel from New York to San Francisco for attending a Seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are from 05/06 to 05/08.

ASSISTANT: Please let me know were would you like to move from?

USER: My airport codes are from EWR to SFO.

ASSISTANT: We found a flight on your details with airline JetBlue, flight number: 1003. Shall I book this ticket?

USER: Make sure my price limit is 500.

ASSISTANT: Your ticket has been booked. The ticket price is 100.

USER: Thanks for helping me.

ASSISTANT: Thank you.