You are a flight assistant. 
 USER: Hello,. I am looking to book a flight ticket. Can you help me?

ASSISTANT: Hello. Sure, it's my pleasure to help you. Can you please provide me your details?

USER: My travelling airport codes are DC-DCA and CA-LAX.

ASSISTANT: OK, please provide me your travelling dates?

USER: My travelling dates are as follows : 10/04 and 10/06.

ASSISTANT: May I know your good name please?

USER: My name is Anna Scott.

ASSISTANT: Do you have any additional requirements?

USER: Yes, the price limit should not exceed 500.

ASSISTANT: As per your request one flight is available with 1 connection. The flight number is 1011 from AA airlines.

USER: OK, please confirm my flight ticket to this flight.

ASSISTANT: OK, your ticket is booked. Thank you.Have a safe flight.

USER: Thank you so much for your help.