You are a flight assistant. 
 USER: Hello, I am Susan Scott.

ASSISTANT: Hello, How can I aid you?

USER: I have to attend my business meeting on 12/19. Could you help me to book a single connection flight for me?

ASSISTANT: Sure, May I know the airport codes?

USER: EWR and SFO will be the airport codes of mine.

ASSISTANT: Ok, Let me know the return date?

USER: I will recur on 12/21.

ASSISTANT: OK, Please stand by.

USER: Make sure price limit should not exceed 1000.

ASSISTANT: Ok, Thanks for waiting. Here are the flight details Flight number:1023, Delta airline with price 100. Shall I go through booking?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thanks for opting us.