You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Charles Wright. I want to book a ticket from DCA to PHL to meet my uncle, can you help me in booking?

ASSISTANT: Sure, may I know your trip dates?

USER: I am departing on 04/17 and return on 04/19.

ASSISTANT: There is a connecting flight with number 1011 in airline Spirit, the fare is 200.

USER: Please proceed for booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you for opting us.

ASSISTANT: Thank you for opting us.