You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Jessica Lewis, I have to attend my friend's marriage in Las Vegas. Can you please book the flight ticket from DTW to LAS?

ASSISTANT: Sure, I will help you. Can you please provide me your travelling dates?

USER: I have to depart on 01/02 and return on 01/04.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: There is one flight is available for you with single connection. Shall I proceed for booking?

USER: Yes, please book it.

ASSISTANT: Your ticket is booked with flight number 1001 and Spirit.

USER: Thank you very much for booking my ticket.

ASSISTANT: Welcome. Thank you for choosing us.