You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Margaret Thompson. I am willing to complete my pending work in the month of may, for that I have to go to JFK from DCA. Will you check any special airline for me?

ASSISTANT: Sure, I will check that for you. Can you provide your preferable travel dates?

USER: Sure. I am planning from 05/14 to 05/16.

ASSISTANT: Could you please help me with the price limit that you are looking for?

USER: I think, can spend within 5000 only. Check for only 1 connected flight.

ASSISTANT: Sure, please allow me a moment to check for the availability of flight.

USER: Ok.

ASSISTANT: Your patience is greatly appreciated. Margaret, I am sorry to inform you that there is no flight available at your requested dates.

USER: Really, I haven't expected this. It's ok, I will plan in any other way.

ASSISTANT: Sorry for the inconvenience.

USER: Thank you for the information.

ASSISTANT: You are welcome. Thank you for contacting us.