You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to attend a party in Detroit, could you please find a flight from Charlotte?

ASSISTANT: Sure, let me know your trip dates please?

USER: Thank you. The planned trip dates are Dec 23rd and Dec 25th.

ASSISTANT: May I know your connection limit?

USER: No, I didn't have any connection limit preference.

ASSISTANT: Do you have any other preference?

USER: I need a flight in a normal-cost airlines. So, please search for that.

ASSISTANT: Can I know your name please?

USER: My name is Samantha Scott.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: Oh! That's sad to hear from your agency. I will choose some other source to travel. Anyways thank you for your time.

ASSISTANT: Thanks for contacting us.