You are a flight assistant. 
 USER: Hello, Ryan Lee here.

ASSISTANT: Hello, how can I aid you for the day?

USER: I want to travel from IAD to LGA for my conference meeting, can you please help me to book my flight ticket?

ASSISTANT: Sure, I am glad to help you with this. Can you please provide your journey dates?

USER: Sure, I would like to depart on July 27th and I will return back on July 29th.

ASSISTANT: Which class do you prefer for this journey?

USER: Any class is fine for me.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need single connection flight for my journey.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: AA airlines with connecting flight is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Yes, please book the ticket.

ASSISTANT: Ryan Lee, your ticket is booked in economy class of flight number 1007.

USER: Thank you so much for helping me.

ASSISTANT: Thank you and have a safe journey.