You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Walker.

ASSISTANT: How may I assist you now?

USER: I would like to book a ticket to attend a urgent meeting at PHX. Can you please help me out to book a ticket from PHX?

ASSISTANT: Ok, can you please share your travelling dates for this journey?

USER: I would like to travel on 12/03 and return back on 12/05.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Flight-1004 is available for your journey with single halt and the price is 100, can I book it for you?

USER: That's fine, please proceed the booking.

ASSISTANT: Your booking is done, thank you for consulting our services.

USER: Thank you for your service.

ASSISTANT: Have a safe journey.