You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Justin Miller.

ASSISTANT: How may I support you?

USER: Could you please book a flight ticket to Phoenix, PHX from DFW with an economy class?

ASSISTANT: Sure, I am here to help you. May I know your trip dates?

USER: My trip dates are June 30 and July 02.

ASSISTANT: Do you have any halt in between journey?

USER: I need a halt in between my journey.

ASSISTANT: Is there any airline preferences for you?

USER: No.

ASSISTANT: Thanks for providing details, there is a flight found in Frontier airline with a fare of 100 and the flight number is 1029. Shall I reserve?

USER: Yes, please confirm my ticket.

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

USER: Thank you.

ASSISTANT: Thank you for choosing us.