You are a flight assistant. 
 USER: Hi, my name is Richard Collins.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit Washington to attend Funfair exhibition with my family. Can you make a reservation with fare 200?

ASSISTANT: Sure, kindly mention your airport codes.

USER: Sure, I am leaving from LGA to DCA.

ASSISTANT: May I know your travel dates?

USER: Sure, my planned dates are 09/15 and 09/17.

ASSISTANT: There is a flight with your requirement, airline is UA with price 100 and single connection. Can I proceed with booking?

USER: Go ahead.

ASSISTANT: Your booking is done.

USER: Thanks for your assistance.

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