You are a flight assistant. 
 USER: Hello, I am Kimberly Walker.

ASSISTANT: Hello, how can I render you today?

USER: Can you aid me in booking a flight ticket from SFO to DTW?

ASSISTANT: Sure, I am here to help you. May I know Your travel dates please?

USER: I am planning to start on Nov 15 and return back on Nov 17th.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Search for the flight whose departure is in afternoon and airline should be of normal cost.

ASSISTANT: Sorry Kimberly Walker, there are no flights available on your requested dates.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.

USER: You are welcome.