You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Kimberly Carter want to book a ticket from Charlotte, CLT to attend my sister wedding. Can you please book a ticket on Sept 17?

ASSISTANT: Sure, please let me know if you have any specific depart and arrival time for this trip.

USER: Yes, my depart time is evening.

ASSISTANT: What is your final destination?

USER: I want to land at Boston, BOS.

ASSISTANT: When would you like to return from BOS?

USER: I intend to return on Sept 19.

ASSISTANT: Do you prefer an economy class or business class?

USER: I prefer economy class.

ASSISTANT: Are you okay with a single flag stop on your way?

USER: Yes.

ASSISTANT: Ok, please give me moment.

USER: Ok.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling with such a lay out.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.