You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a ticket from DCA to PHL. Could you book a ticket?

ASSISTANT: Sure, could you please share your trip dates?

USER: Depart is by June, 30 and return date is July, 2.

ASSISTANT: Do you have any specifications?

USER: I would like to return in the evening.

ASSISTANT: For booking purpose I required your name, can I know your name?

USER: My name is Elizabeth Collins.

ASSISTANT: We found a connecting flight 1017 from American airlines has fare 200 and arrival time is 1:00 hours. Shall I proceed?

USER: Please book a ticket.

ASSISTANT: Your booking has been processed.

USER: Thanks.

ASSISTANT: Thank you for reaching us.