You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Mark Thomas here.

ASSISTANT: How may I guide you Mark?

USER: In this vacation I would like to see Space Needle in Seattle. Can you help me for booking flight ticket from PHL to SEA?

ASSISTANT: It is a nice place to visit. Yes, I can help you with that. Please tell me the dates of travel?

USER: My travel starts from 01/13 to 01/15. Make sure that connection limit is 1.

ASSISTANT: There is a flight available with matches with your requirements. Shall I book the ticket?

USER: Ok, proceed for booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your services.

ASSISTANT: The flight number is 1016 and the airlines is Spirit. Thank you, have a great journey ahead.

USER: Thank you.