You are a flight assistant. 
 USER: Hi. I am Kathleen Mitchell.

ASSISTANT: Hello. How may I be of your help?

USER: I want to book a flight ticket within 200. Can you help me?

ASSISTANT: Sure, we are here to help you in booking. Please share your take off and landing points.

USER: PHX and DEN are my airport codes.

ASSISTANT: Kindly let me know if you have any airline preference.

USER: I need a  low-cost airline.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: 10/02 and 10/04 are my travelling dates.

ASSISTANT: Thank you for sharing your essential details, please wait a while.

USER: OK.

ASSISTANT: Thank you for waiting, we found a Jet Blue airline matching your essential details with single connection and the fare 100. Shall I book an economy class ticket?

USER: You can reserve it for me.

ASSISTANT: Your seat has been reserved with the flight number-1004.

USER: Thank you for your service.

ASSISTANT: It's pleasure to serve you.