You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a ticket from BOS to DCA?

ASSISTANT: Sure, can you provide your journey dates?

USER: My travelling dates will be on Sept 6 to Sept 8.

ASSISTANT: Do you have any preferences?

USER: I would prefer a connecting flight.

ASSISTANT: May I know your name?

USER: Carolyn Garcia here.

ASSISTANT: There is a connecting flight with number 1002 in airline JetBlue, the fare is 100 in economy class. Can I book it?

USER: I would prefer a economy class and I want to depart in the morning. Please check morning flight for me.

ASSISTANT: Sorry, there is no flight which depart in the morning.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.