You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking a flight ticket from PHL to LAS?

ASSISTANT: Can you help me with your travelling dates?

USER: Sure, my travel dates are from Apr 16 to Apr 18.

ASSISTANT: Is there any connection limit?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your good name please?

USER: Myself John Young.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: We found a connecting flight of Spirit Airlines in the economy class with fare 100, can I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1002.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.