You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Stephen Lee.

ASSISTANT: Nice to meet you Stephen.

USER: I have a plan to meet my friend in DFW, can you please find a flight from DCA?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my planning dates are from 04/21 till 04/23.

ASSISTANT: There is a flight available for you in JetBlue airline with 1 connection. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for booking.

ASSISTANT: My pleasure.