You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank Lopez.

ASSISTANT: How may I lend a hand to?

USER: I am planning to visit Phoenix to meet my friend, can you please book me a ticket from DTW to PHX?

ASSISTANT: Frank Lopez, I am willing to help you for this. When you are planning to leave?

USER: I want to depart on Jan 31 and would like to return on Feb 02.

ASSISTANT: Do you have any specification?

USER: Yes, I need a ticket fare under 200.

ASSISTANT: As per your data, there is a flight with Spirit airlines and the ticket figure is 200. Shall I proceed for this?

USER: Please book my ticket with this airlines.

ASSISTANT: Your ticket is reserved in economy class with the flight-1007.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you very much for utilizing our agency.