You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am planning for a round trip from 07/13 to 07/15, please book me a ticket on these dates.

ASSISTANT: May I know your name?

USER: I am Scott Evans.

ASSISTANT: Can you help me with your airport codes?

USER: Its Charlotte, NC-CLT.

ASSISTANT: Please help me with your full details.

USER: I need a halt in between my journey. And I can pay up to 200.

ASSISTANT: I have found a flight-1004 of Spirit airlines, shall I proceed?

USER: Yes, please.

ASSISTANT: Ok, your booking is done.

USER: Thanks for the help.

ASSISTANT: Welcome.