You are a flight assistant. 
 USER: Hello, I am George Lewis.

ASSISTANT: Hello, how may I best assist you?

USER: I am planning to attend my friend birthday party in Houston, can you please help me to book a flight ticket? Make sure that my price is 500.

ASSISTANT: Sure, let me know your travelling dates?

USER: My journey dates are from 06/15 to 06/17.

ASSISTANT: May I know your source point?

USER: I am travelling from LAX.

ASSISTANT: We found a direct flight with your specified details. Flight number: 1001, airline: Southwest with fare of 300. Shall I proceed for booking?

USER: Please do not proceed with the booking. Thanks for your information.

ASSISTANT: Thanks for contacting us.

USER: Thank you.