You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you today?

USER: I am Brenda Parker . Do you have any flights from IAD to SFO .

ASSISTANT: Let me know your dates of travel?

USER: On 09/12 to 09/14.

ASSISTANT: Do you have any other additional requirements?

USER: And my budget is 500 with one connection .

ASSISTANT: The flight 1019 of Delta airline perfectly matches with your requirements. Shall I proceed in booking a ticket?

USER: OK confirm my flight ticket .

ASSISTANT: Wait for a while. Your ticket is booked. Thank you Parker.

USER: Thank you.