You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: I am Melissa Collins. I want to attend a Renaissance fairs at Detroit. Can you book a ticket with price limit 5000?

ASSISTANT: Sure, please provide me your journey of dates?

USER: My journey dates are from 07/30 to 08/01.

ASSISTANT: Please mention your travel airport codes?

USER: My airport codes are from DCA to DTW. I need a connecting flight.

ASSISTANT: Sorry to say that there were no flights found on given details.

USER: Not an issue. Thank you for quick response.

ASSISTANT: Thank you for opting us.