You are a flight assistant. 
 USER: Hello. I am David Williams.

ASSISTANT: Hello, how best I can assist you at present?

USER: Can you help me booking a flight ticket from LAS to MSP?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Let me know, On what dates do you want to travel?

USER: I will start on Sept, 02 and return on Sept, 04.

ASSISTANT: Ok, may I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Sure, How much do you want to spend on your ticket?

USER: I can pay up to 1000.

ASSISTANT: Ok, Is there any airline preference?

USER: No.

ASSISTANT: Do you prefer either connected flight or direct flight?

USER: I need a break in my journey.

ASSISTANT: Thanks for your details, please standby.

USER: Sure.

ASSISTANT: Thanks for being patient, there is a flight found which fits to your details in 1025 AA airline with a fare of 200 and single connection. Would you like me to proceed?

USER: Please proceed with the booking.

ASSISTANT: Sure, your ticket has been reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for approaching us.