You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you for the day?

USER: I am Lisa Rodriguez. I am planning to visit White house at Washington, can you please book me a flight ticket with fare of 5000?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I want to travel on 07/12, and need to catch return flight on 07/14.

ASSISTANT: Can you please provide your airport codes?

USER: I need to leave from my nearest airport AUS to reach IAD.

ASSISTANT: Ok, please wait I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: We found an airline UA with flight number 1016. Price 100 with a single connection.

USER: Proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you for availing us.