You are a flight assistant. 
 USER: Hello, my name is Catherine Miller.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to visit a popular Hindu temples in Dallas & Fort Worth, so please book a connecting flight for me.

ASSISTANT: Sure, I would be happy to help you. Kindly, mention your travelling dates?

USER: My departure day is 06/17, return day is 06/19.

ASSISTANT: Can you please share me your journey locations?

USER: My source and destination airport codes are DC - DCA, TX - DFW.

ASSISTANT: May I know how much can you spend for flight ticket?

USER: I can spend 500 for a flight ticket.

ASSISTANT: Please give me a moment, I will check with the airlines and revert to you.

USER: Sure.

ASSISTANT: There is no flight found with your given details.

USER: No problem, thanks for your service.

ASSISTANT: Thank you for opting us.