You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I render you today?

USER: I am planning to visit Detroit with my family. Can you help me to book a ticket?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates please?

USER: My trip dates are 05/15 and 05/17.

ASSISTANT: Noted. Can you please share your origin and destination airport codes?

USER: My airport codes are PHX-DTW.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure.

ASSISTANT: I found a flight for you with Spirit airline and it costs you 300. Shall I proceed to reserve a seat in this particular airline?

USER: Go ahead.

ASSISTANT: On whose name you would like to book this ticket?

USER: Ruth Anderson here.

ASSISTANT: Your ticket has been booked with 1003 flight number Ruth.

USER: Thank you so much.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: Thank you.