You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Jacob Lopez. I want to book a ticket from DCA to IAD to meet my friend, can you help me in booking?

ASSISTANT: Sure, may I know your flying and landing dates?

USER: I am departing on 06/25 and return on 06/27.

ASSISTANT: There is a connecting flight with number 1000 in airline Spirit.

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.