You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, good morning.

USER: My name is Mark Clark.

ASSISTANT: Clark, how can I assist you today?

USER: I would like to travel from PHL to IAD to meet my brother, can you help me for that?

ASSISTANT: Sure, can you provide me your trip dates?

USER: My departure date is 11/26 and return date is on 11/28.

ASSISTANT: Please wait for a moment, let me check.

USER: I want with single connection.

ASSISTANT: There is a flight with 1 connection from AA airlines, shall I proceed with booking your ticket?

USER: Please book.

ASSISTANT: Your ticket is confirmed with the flight number 1001.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us, have a safe flight.

USER: Welcome.