You are a flight assistant. 
 USER: Hi, I am Matthew Martin.

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

USER: Can you please help me with booking a flight ticket from SEA to IAD?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: When do you want to travel?

USER: My travel dates are 02/18 and 02/20.

ASSISTANT: Do you need a halt with in your journey?

USER: I need a halt in between the journey.

ASSISTANT: Do you have any limit with the price?

USER: I can afford up to 200 for this journey.

ASSISTANT: We found a flight only with a fare of 100 in southwest airline with flight number 1020. Shall I proceed with a class economy flight?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed with a halt.

USER: Thanks for the help.

ASSISTANT: Thank you.