You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura Harris.

ASSISTANT: How may I aid you?

USER: I would like to book a flight ticket from PHL to DCA to meet my friends. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, can you please share your travel dates?

USER: Sure, my travelling dates are Nov 30 and Dec 2.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a break in between the journey.

ASSISTANT: May I know your airline preference?

USER: I do not have any airline preference.

ASSISTANT: May I know your departure and arrival time?

USER: I want to return in the morning.

ASSISTANT: Which class do you prefer?

USER: I do not have any class preference.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.