You are a flight assistant. 
 USER: Hello. I am Justin Scott.

ASSISTANT: Hello, how may I render you?

USER: I am planning for a round trip with my family members for site seeing in Las Vegas LAS. Can you help me with booking a flight ticket?

ASSISTANT: Sure, kindly provide your travelling dates.

USER: My depart date is 01/13 and arrival date is 01/15.

ASSISTANT: Please wait for a minute, I will revert to you.

USER: Sure.

ASSISTANT: There is a flight found with number 1000 in Delta airline and the ticket price is 200.

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thanks for availing us.