You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to visit Bryant Park with my brother, could you please help me in booking my ticket?

ASSISTANT: Sure, I will be happy to help you. Can you please provide me your source and destination airport codes?

USER: My source and destination airport codes are LAX and EWR.

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are from 11/26 to 11/28.

ASSISTANT: Please wait for a moment, let me check for the available flights.

USER: Sure, take your time.

ASSISTANT: Before I proceed, may I know your name please?

USER: My name is Larry Robinson.

ASSISTANT: Sorry Larry, there are no flights available to EWR on 11/26.

USER: Ok, no problem. I will find another means of transport.

ASSISTANT: Ok, what else can I do for you?

USER: No, thank you for your quick response.

ASSISTANT: Thank you for approaching us, please give your feedback in our website.

USER: Sure, I will definitely provide you a feedback.

ASSISTANT: Thank you so much.