You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you today?

USER: Can you please assist me in making an airline reservation from IAD to DFW?

ASSISTANT: Sure, can you provide your travel dates?

USER: My travel dates are Jan 6th and Jan 8th.

ASSISTANT: Is there any class preference for you?

USER: Yes, I will prefer to go by economy class.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: May I know your good name?

USER: Mary Green.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found a connecting flight 1021 in American Airlines at the cost 100. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your booking is done in an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.