You are a flight assistant. 
 USER: Hi, I am Lisa Anderson.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to visit Perot museum of nature and science in Dallas & Fort Worth, TX - DFW. Can you help me to book a connecting flight?

ASSISTANT: Sure, may I know when you are planning to travel?

USER: I want to fly on 06/23 and recur on 06/25.

ASSISTANT: Could you please share me your source code?

USER: My source is from Seattle, WA - SEA.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a connecting flight with an airline UA of flight 1019 and fare is 100. Can I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your prompt response.

ASSISTANT: Thank you.