You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Donna Collins. I want to book a flight ticket on these days that is on 09/26 and back on 09/28. Can you find a flight ticket for me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling airport codes please?

USER: Sure, my airfield locations are from DCA to LGA.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Yes, proceed with the ticket confirmation.

ASSISTANT: OK, your ticket has been booked with flight number 1014.

USER: Thank you for your valuable help.

ASSISTANT: Thank you for choosing us.