You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a fight ticket from BOS to DFW?

ASSISTANT: Sure, I am here to help you. Can I have your travelling dates?

USER: My trip dates are Feb, 15 and Feb, 17.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I am fine with any connection limit.

ASSISTANT: Are there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: Catherine Thomas here.

ASSISTANT: We found a connecting flight in Southwest airline with a fare of 100 which departs at 4:00 and return at 0:00. Shall I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1020.

USER: Thank you.

ASSISTANT: Thank you for availing us.