You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jeffrey Wilson.

ASSISTANT: How may I assist you?

USER: I am planning to visit Washington to attend a seminar on global warming, can you please book me a ticket from DCA to IAD?

ASSISTANT: Sure, help me with the trip dates?

USER: My preferable journey dates for this trip are from May 10 to May 12.

ASSISTANT: Here, I found a flight for you with 1 stopover and it costs you 200 in economy class. Can I proceed?

USER: That's ok for me. Please book my ticket with this airlines.

ASSISTANT: Your flight ticket has been processed in an airline AA with 1006 number.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us.