You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me to book a flight from DFW to SEA?

ASSISTANT: Can you please share your trip dates?

USER: I will start my trip on Apr 5th and will return back on Apr 7th.

ASSISTANT: Do you prefer any connection?

USER: I am comfortable with a connecting flight.

ASSISTANT: Which class do you prefer in your journey?

USER: I am fine with any class.

ASSISTANT: Do you prefer any specifications?

USER: I travel only in normal-cost airlines.

ASSISTANT: Please share your name?

USER: My name is James Collins.

ASSISTANT: There is a connected flight in AA airlines with the fare 100.

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you.