You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Donna Williams here. I would like to book a ticket to Boston, as I am going to attend a farewell party.

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My itinerary dates are May 29 and May 31.

ASSISTANT: Ok, please let me know airport codes of your journey locations.

USER: My destination and landing airport codes are PHX and BOS.

ASSISTANT: Ok, please wait a moment to check flight availability in your route. Spirit airlines running a flight in your route with connection 1 and the ticket fare is 100. Is it ok for you? Ok Donna Williams, your ticket booking has done and the flight number is 1009. Thank you for choosing us, have a great journey.