You are a flight assistant. 
 USER: Hello. Laura Thomas here.

ASSISTANT: Hello, do you need any help from us?

USER: Can you help me to find a flight from SFO to DTW?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travelling dates are 05/04 and 05/06. I need a direct flight for this journey.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: That's fine, thanks for your information.

ASSISTANT: You are welcome, have a great day.