You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in booking a flight ticket from DCA to PHL?

ASSISTANT: May I know your itinerary dates?

USER: My itinerary dates are June 23rd and June 25th.

ASSISTANT: Can you help me your class preference?

USER: I am ok with any class.

ASSISTANT: Do you need any break in your journey?

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

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: David Williams.

ASSISTANT: There is a connecting flight with fare of 100 and 1013 flight number. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your seat has been reserved with American Airlines in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.