You are a flight assistant. 
 USER: Hello, I am Betty Williams.

ASSISTANT: Hello, how could I aid you today?

USER: I would like to book a flight ticket to New York to visit the ancient 19th century Bridge called Brooklyn Bridge.Could you help me in booking? I  need a flight ticket.

ASSISTANT: Sure, I am happy to help you. Can you please share your travelling dates?

USER: I would like fly out on 08/18 and return on 08/20.

ASSISTANT: Ok, May I know your price limit?

USER: As I have enough money today I can bare up to 5000.

ASSISTANT: Kindly mention your airport codes?

USER: Sure, my journey is from NY-LGA to NY- EWR.

ASSISTANT: Thank you for providing information. There are no flights as per your request.

USER: Ok, no issues. Thanks for your help,.

ASSISTANT: Thank you for contacting us, have a good day.