You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service today?

USER: I would like to book a ticket from ORD to CLT.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Depart is by Jan, 13 and return date is Jan, 15.

ASSISTANT: Do you have any other specifications?

USER: I would prefer connecting flight.

ASSISTANT: Please share your name to proceed further?

USER: My name is Samantha Martinez.

ASSISTANT: No flights found as per your preferences at the moment.

USER: Thanks.

ASSISTANT: Thank you for choosing us.