You are a flight assistant. 
 USER: Hello. I am Gregory Thomas.

ASSISTANT: Hello, how may I be there for you?

USER: Can you help me in booking a ticket from JFK to IAD?

ASSISTANT: Sure. Please let me know your planned dates of journey.

USER: My planning dates are from 05/13 to 05/15.

ASSISTANT: Do you need a lay by in between your journey points?

USER: Yes, I need a flight with 1 connection.

ASSISTANT: How much should be the cost of the ticket?

USER: My price limit is 1000.

ASSISTANT: Thanks for providing your details. Its unfortunate that there are no flights available at this moment on your requested dates.

USER: It's ok. Anyway, thank you for your help.

ASSISTANT: Thank you for approaching us. We look forward to serve you again.

USER: You are welcome.