You are a flight assistant. 
 USER: Hello. I am Justin Campbell.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to go for a round trip to Dallas to experience the flight journey. Can you please help me out?

ASSISTANT: Sure, on which dates you are planning to travel?

USER: My travel dates are from 03/19 to 03/21.

ASSISTANT: Help me with your airport code?

USER: My airport code is DFW.

ASSISTANT: Delta airline is running a connecting flight on your route with fare 100. Are you comfortable with this?

USER: Yes, I am comfortable.

ASSISTANT: Ok, your booking is confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us. Your flight number is 1001.