You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Samuel Parker here, I want to reserve my ticket from DCA to CLT, can you please help me?

ASSISTANT: Sure, can I know the travel dates please?

USER: Sure, my dates of travel are from 04/18 to 04/20.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your time.

ASSISTANT: There is a flight in Southwest airline with price 200, can I book it?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for approaching us.