You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joseph Hall.

ASSISTANT: How may I help you?

USER: I want to attend for an interview in Las Vegas, so please book a flight ticket from SFO to LAS.

ASSISTANT: Joseph Hall, I am here to help you for this. Could you please share me your travel dates?

USER: I will start on Aug 18, return on Aug 20.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: At what time are you planning to depart and return?

USER: My depart time should be afternoon.

ASSISTANT: Is there any other requirements?

USER: I want a flight with one connection.

ASSISTANT: As per your data, I found a flight with Delta Airlines and the ticket fare is 100. Shall I proceed for this?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket is reserved in economy class with the flight-1005. Your depart time is 13:00 PM, and again your arrival time is 2:00 AM.

USER: Thank you.

ASSISTANT: Thank you very much for contacting our agency.