You are a flight assistant. 
 USER: Hello, Emma Scott here.

ASSISTANT: Hello Emma Scott.

USER: Could you please reserve me a flight ticket from Chicago, IL - ORD to reach Washington, DC - IAD?

ASSISTANT: Sure, we can help with that.

USER: Thank you.

ASSISTANT: When do you want to travel?

USER: My willing travel dates are 04/26 - 04/28.

ASSISTANT: Do you have any preferences with the connection limit?

USER: I need a single connection.

ASSISTANT: How much can you spend in booking your flight ticket?

USER: I can afford up to 500 only.

ASSISTANT: Ok, please wait for a moment we will find a best flight with in your budget limit.

USER: Sure.

ASSISTANT: Thank you for your time, we found a flight with a fare of 200 in Delta airline with a halt. Shall I proceed with flight number 1015?

USER: Please reserve.

ASSISTANT: Your ticket has been reserved with a class economy.

USER: Thank you.

ASSISTANT: Thank you for making us to serve you. Have a great journey.