You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Jessica White.

ASSISTANT: How can I support you?

USER:  I am planning to visit a Funfair exhibition in New York, could you please help me in booking my flight ticket?

ASSISTANT: Sure, let me know your trip dates?

USER: I want to travel on 06/07, and need to catch return flight on 06/09.

ASSISTANT: How much is your budget for this trip?

USER:  Make sure to check a flight with in a price limit of 200.

ASSISTANT: May I know your source and destination airport codes?

USER:  I need to leave from my nearest airport LAX to reach EWR.

ASSISTANT: Thanks for your details, there were no flights found with your given preferences.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thanks for using our service.