You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am planning to visit Detroit institute of arts in DTW. Can you avail me to book a connecting flight?

ASSISTANT: Ok. Sure, Please provide your travel dates.

USER: My travel dates are Dec 05 and 07.

ASSISTANT: May I know your source airport code?

USER: My source is from Las Vegas, LAS.

ASSISTANT: Do you have any preferences?

USER: I want to return in the evening time.

ASSISTANT: Is there any class preferences?

USER: I wish to travel in economy class.

ASSISTANT: May I know your name?

USER: Karen Hall here.

ASSISTANT: Flight-1003 is available in Delta airlines with single connection and the ticket fare is 100. Can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.