You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me to book a ticket from DFW  to PHX?

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates are on June 11 and June 13.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel in single connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Are there any other specifications?

USER: No.

ASSISTANT: Please forward your name.

USER: My name is Joshua Clark.

ASSISTANT: We found a connecting flight of fare 100 with airline Spirit and number 1020. Can I book?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.