You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to attend a seminar in my college at Detroit, so can you please help me in booking a ticket?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: I have planned to travel on Sept 16 and return on Set 18.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a single connecting flight.

ASSISTANT: Can you please share your airport codes?

USER: I am heading to DTW  from BOS.

ASSISTANT: May I know your good name please?

USER: My name is Samuel Wilson.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us.