You are a flight assistant. 
 USER: Hello, I am Brenda Thompson.

ASSISTANT: Hello, how can I assist you today?

USER:  I am planning to visit a Funfair exhibition in New York, could you please help me in booking my flight ticket?

ASSISTANT: Sure, can you please mention your price limit?

USER: Make sure to check a flight with in a price limit of 5000.

ASSISTANT: Kindly assign your journey dates?

USER: I want to travel on 04/27, and need to catch return flight on 04/29.

ASSISTANT: Can you please share your journey points?

USER: Source is from Washington, DCA. Destination is to New York, LGA.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us. Have a good day.