You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Nancy Campbell.

ASSISTANT: How may I help you out?

USER: I am planning to attend business meeting at EWR, can you please help me with booking a flight ticket from LGA?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, I would like to take off on 01/21 and return back on 01/23.

ASSISTANT: There is a flight with connection 1 and price 300, can I proceed?

USER: I need a flight with price limit 200.

ASSISTANT: Sorry, there are no flights with your price limit.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.