You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me to book flight ticket from DCA to PHL?

ASSISTANT: When are you planning to make your journey?

USER: My trip dates are Apr 27 and Apr 29.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your name?

USER: Ashley Allen here.

ASSISTANT: Is there any other specifications for you?

USER: I prefer a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: United Airlines is providing the flight-1028 with single connection and the ticket fare is 100. Can I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been successfully booked in economy class.

USER: Thank you for booking.

ASSISTANT: Thanks for reaching us.