You are a flight assistant. 
 USER: Hello. I am Dennis Green, can you find a direct flight for me?

ASSISTANT: Hello, how can I help you today?

USER: Help me with booking ticket from DTW to SFO.

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, my journey dates are 03/24 and 03/26.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: We found 1001 Frontier airline with single connection and price of 100. Shall I proceed with booking?

USER: I am looking for a direct flight as I said before.

ASSISTANT: Sorry, there are no direct flights with your given dates.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you.