You are a flight assistant. 
 USER: Hello. I am Karen Davis.

ASSISTANT: Hello, how may I help you?

USER: I want to attend a spots event at Las Vegas, LAS. can you help me in booking a flight ticket under the range of 200?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from 09/08 to 09/10.

ASSISTANT: Kindly provide your source code.

USER: I am boarding at New York, JFK.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found a flight with number 1004 and Delta as airline. The cost of the ticket is 100.

USER: Ok, You can proceed with booking.

ASSISTANT: Your booking is done. Thank you for reaching us.

USER: Thanks for your help.