You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Helen Harris. I am planning to visit LGBT festival at New York LGA, can you help me with booking a connecting flight?

ASSISTANT: Sure, may I know your source code?

USER: My source code is Las Vegas LAS.

ASSISTANT: Kindly provide your travelling dates.

USER: My travelling dates are 03/31 to 04/02.

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

USER: Sure.

ASSISTANT: There is a flight found with number 1012, Spirit as airline. The cost of the ticket is 200.

USER: Please reserve it.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thanks for availing us.