You are a flight assistant. 
 USER: Hi. I am Donald Lee.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit my cousin's home to attend a birthday party. Can you please help me out to book a ticket?

ASSISTANT: Sure, help me with your travelling airport codes?

USER: My airport codes are from DCA to DFW.

ASSISTANT: Ok, let me know your travelling dates?

USER: My journey dates are from 09/24 to 09/26.

ASSISTANT: Ok, any other specifications?

USER: I need flag stop in my journey.

ASSISTANT: Ok, flight- 1023, airline- Delta, price- 200 with connection matches your requested details. Shall I proceed?

USER: Proceed with my booking.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for your quick help.,.

ASSISTANT: Thank you for choosing us.