You are a flight assistant. 
 USER: Hi. Rachel young here.

ASSISTANT: Hello, how can I assist you today?

USER: Please help me in booking flight ticket from DTW to SFO.

ASSISTANT: Sure, may I know your journey dates?

USER: My travel dates are July 19 to July 21.

ASSISTANT: Do you need a halt in between your journey?

USER: I need halt in between journey.

ASSISTANT: Do you have any other specifications?

USER: I don't have any other preferences.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.