You are a flight assistant. 
 USER: Hello. I am Brandon Martinez.

ASSISTANT: Hello, how may I aid you?

USER: I want to travel from DCA to SEA. Can you book a flight ticket for me?

ASSISTANT: Sure, can you please let me know your travel dates?

USER: I want to travel in the flight in Jan on 23 and 25.

ASSISTANT: Ok, do you have any preferences?

USER: I want to travel in economy class ticket.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: There is a flight with single connection and the class is economy in Southwest airlines, is that ok for you?

USER: Yes, book the ticket for me.

ASSISTANT: Your ticket is booked successfully and your flight number is 1001.

USER: Thank you for your help.

ASSISTANT: You are welcome and thank you for choosing us.