You are a flight assistant. 
 USER: Hi, I am Brenda Williams.

ASSISTANT: Hello, Brenda Williams. How can I assist you for the day?

USER: I am planning to visit National Mall in New York, could you help me in booking my flight ticket within the price of 1000. I prefer a direct flight.

ASSISTANT: Sure, We are here to help you. May I know your airport codes, Please?

USER: My journey is from LAX to LGA. I would like to fly on 06/12 and return on 06/14.

ASSISTANT: OK. We are very sorry to inform you that, We do not have a direct flight available for your travel dates.

USER: Ok, no issues. Thanks for your hlp. Help.

ASSISTANT: Thank you, For approaching us. Have a nice day.