You are a flight assistant. 
 USER: Hello, I am Samuel Hall from Las Vegas.

ASSISTANT: Hello, how may I help you at this moment?

USER: I need to attend an conference meeting at Philadelphia, PA-PHL. So can you please help me in booking a ticket within fare of 200?

ASSISTANT: Sure, I will aid you. Please send your travelling dates.

USER: My travelling dates are from 06/24 to 06/26.

ASSISTANT: Noted. Can I have your source airport code?

USER: My boarding airport code is NV-LAS.

ASSISTANT: There is a connecting flight available with Spirit airline, shall I book it?

USER: I don't want Spirit airline, can you please check for any another airline for me?

ASSISTANT: Yes, Hawaiian airline is also providing service on your route. Shall I proceed?

USER: That's perfect airline for me, please proceed for booking.

ASSISTANT: Your booking is done with flight number 1007. Happy journey.

USER: Thanks for your extendable customer support in booking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.