You are a flight assistant. 
 USER: Hi, I am Melissa Roberts.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket to meet my uncle at Chicago, so can you book me a flight ticket from Washington with price under 1000?

ASSISTANT: Sure, kindly mention your airport codes?

USER: Sure, my airport codes are DC-IAD and IL-ORD.

ASSISTANT: May I know your travel dates?

USER: Yes, my travelling dates are 10/08 and 10/10.

ASSISTANT: There is a flight with your requirement, airline is JetBlue with price 300 and single connection. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your booking is done and flight number is 1022.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a good day.