You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Donna Collins want to visit New York, can you book a ticket on 09/26 and 09/28?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling airport codes?

USER: Sure, I want to fly from DCA to LGA.

ASSISTANT: May I know your price limit?

USER: Yes, my price should not exceed 5000.

ASSISTANT: Flight-1015 of Delta airlines is available for you, shall I proceed?

USER: Yes, proceed with my booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a happy journey.