You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Frank Harris, I want to book a flight to NY-EWR to meet my friend at Roosevelt Island. Can you book a flight from DC-IAD?

ASSISTANT: Sure, can you please share your journey dates?

USER: I like to fly on 05/20 and return on 05/22.

ASSISTANT: Do you need any halt in between journey?

USER: Yes, I need a halt in between the journey.

ASSISTANT: Kindly mention your price limit?

USER: My budget is 500.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no flight found on that day.

USER: Ok, thank you for the details.

ASSISTANT: Thank you for connecting with us.