You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have a meeting to attend at Detroit. Can you help me in booking a ticket from SFO to DTW?

ASSISTANT: On which dates you like to travel?

USER: My planned journey dates are 08/12 and 08/14.

ASSISTANT: May I know your name please?

USER: My name is Ashley Hall.

ASSISTANT: I am sorry no flights found on your route.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you.