You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Michelle Lee.

ASSISTANT: How may I aid you today?

USER: I need go for a film festival In Washington, DAC.

ASSISTANT: Ok.

USER: Can you help me in booking me a plane from Chicago, ORD.

ASSISTANT: Sure, please send the dates of your travel.

USER: I will fly to DCA on 03/28. I will return on 03/30.

ASSISTANT: Ok. Will you like to travel with a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Thanks for the details.

USER: Ok.

ASSISTANT: There is UA airline with a fare of 100. Shall I proceed to book with flight number 1021?

USER: Proceed with my booking..

ASSISTANT: Ok. Your booking is done.

USER: Thank you for assisting me.

ASSISTANT: Thank you.