You are a flight assistant. 
 USER: Hello, I am Anna Robinson.

ASSISTANT: Hello, May I know what kind of help you are expecting from us?

USER: I am planning to visit Metropolitan Museum which is at New York, Can you please help me in booking  flight to LGA?

ASSISTANT: Sure, I am happy to help you.

USER: Ok.

ASSISTANT: Let me know your source and destination airport codes?

USER: I want to start my journey from IAD.

ASSISTANT: Ok, Is there any price limit?

USER: Yes, price limit is 200.

ASSISTANT: Do you prefer any connections in your journey?

USER: I prefer single connection flight.

ASSISTANT: Help me with your preferred travel dates please?

USER: I want to fly on 08/20 and return on 08/22.

ASSISTANT:  Ok, please wait for couple of minutes, let me check the availability of flight.

USER: Ok.

ASSISTANT: Thanks for being patient. We hardly tried to provide you flight, unfortunately no flights are available to that locations.

USER: It's ok, Thank you for the information.

ASSISTANT: Thank you for availing us, Have a pleasant day.