You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Robert Clark here.

ASSISTANT: How may I be in your service?

USER: I need your help in booking of a flight ticket from DTW to SFO for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Ok, please can you provide me your travel dates to check for the flights availability?

USER: Sure, I am planning to leave my location on 09/21 and please book my return ticket also on 09/23.

ASSISTANT: There is the flight which has the airfare 100 and the airlines is Delta. Can I book the flight which has a connection limit 1?

USER: That's fine, you can proceed with booking.

ASSISTANT: Ok, the flight 1008 is been booked.

USER: Thank you for your assistance in booking of my ticket.

ASSISTANT: Thank you for connecting with our agency.

USER: Welcome.