You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Please book me a ticket from PHL to MSP to meet my family.

ASSISTANT: Sure, may I know your trip dates?

USER: I have planned to travel on July 25th and return on July 27th.

ASSISTANT: Could you let me know your other specifications?

USER: I prefer only economy class and I don't want any other specifications.

ASSISTANT: May I know your name?

USER: Myself Kathleen Hill.

ASSISTANT: There is a flight on Southwest airline, flight number 1001 with the fare of 100. Can I proceed?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket has been booked on economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.