You are a flight assistant. 
 USER: Hi. My name is David Williams.

ASSISTANT: Hello, how can I aid you?

USER: I scheduled my trip to go for brooklyn walking tour at New York. So, please help me in booking a flight ticket with the fare of 5000.

ASSISTANT: Sure, I will help you in booking flight ticket. May I know when are you willing to travel?

USER: I will start on 09/10. My return would be on 09/12.

ASSISTANT: Can I have your airport codes please?

USER: Mysource code is LAS and destination code is EWR.

ASSISTANT: Please standby, I will check the availability of flights and revert you.

USER: Sure.

ASSISTANT: I am gleeful to say that there is a flight available which matches with your requirements.

USER: Ok.

ASSISTANT: Airline:Southwest, flight number:1002 with price 100 and 1 connection.

USER: Please proceed.

ASSISTANT: Your flight has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us.