You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Brandon Roberts, I am currently staying in DTW but I want move to SFO, can you help me to find a flight?

ASSISTANT: Can I have your travel dates to find a flight for you?

USER: My travelling dates are 12/07 and 12/09.

ASSISTANT: Sorry, there is no flight for you on your route.

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

ASSISTANT: Thanks for reaching us.