You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Brian Scott. I am planning to conduct a film festival at Washington. Can you help me in my booking?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My source airport code is TX - DFW. My destination is DC - DCA.

ASSISTANT: May I know your planned travel dates?

USER: I will start my journey on 01/22. I will return on 01/24.

ASSISTANT: May I know your budget?

USER: I can pay up to 1000.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Not an issue.

ASSISTANT: Thank you for opting us.

USER: Thank you for your quick response.