You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Donna Thomas.

ASSISTANT: How can I help you?

USER: I would like to visit Shedd Aquarium at Chicago with my cousin, please help me in booking a ticket from DFW to ORD.

ASSISTANT: May I know your desired travel dates please?

USER: My travel dates are 12/21 and 12/23.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Ok, please proceed with my booking.

ASSISTANT: Your ticket is booked, flight number 1021.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.