You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Carter.

ASSISTANT: How can I help you?

USER: I am planning to visit DTW to meet my friend, can you please find a flight from SFO?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: I am planning to start my journey on 05/01 and return back on 05/03.

ASSISTANT: Please allow me a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, no flights are available on your route.

USER:  That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.