You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to visit  Perot Museum of Nature and Science at Dallas, can you please book a ticket?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: My planned dates of travel are from 08/28 to 08/30.

ASSISTANT: Can you share me your airport codes?

USER: I want to travel from CA-SFO to TX-DFW.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight. Price limit is 1000.

ASSISTANT: There is a direct flight with price of 100 and flight number is 1000. Shall I proceed with this?

USER: Do not proceed with booking. Thank you for your information.

ASSISTANT: For documentation may I know your name?

USER: I am Nancy Jackson.

ASSISTANT: Thanks for choosing us, have a good day.