You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist to you?

USER: I am Brenda Allen I want to book a flight from Washington DC to visit Defence Expo. Can you help me to book a flight under fare of 200?

ASSISTANT: Sure, can you share your source and destination points?

USER: My source point is DC-IAD and destination is GA-ATL.

ASSISTANT: How much you can afford for ticket?

USER: My budget is 200.

ASSISTANT: Sorry, may I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: When do you want to travel?

USER: I will travel on 08/24 and return on 08/26.

ASSISTANT: Right now, there is no flight available to your destination.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.