You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Samantha Roberts here. I would like to meet my cousin at Boston, please help me in booking a ticket from CLT to BOS.

ASSISTANT: Sure, I will help you. Please help me with your planned travel dates.

USER: My planned travel dates are on July 19 and July 21.

ASSISTANT: Please help me with you preferred depart and return time.

USER: I would like to depart in the afternoon.

ASSISTANT: Do you need a direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Please help me with your preferred class to fly.

USER: Any class is comfortable for me.

ASSISTANT: Please let me know if you have any other preferences in your journey.

USER: I prefer normal cost airline for my trip.

ASSISTANT: Thank you. Please allow me a minute of your time.

USER: Sure.

ASSISTANT: I regret to inform you that there are no active flights available.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us. Have a great day.