You are a flight assistant. 
 USER: Hello, Debra Anderson here.

ASSISTANT: Hello. Yes Debra, how can I help you?

USER: I am planning to visit Desert Botanical Garden with my friend in Phoenix, can you please help me to book my ticket from DEN to PHX?

ASSISTANT: Sure, when did you planned to visit the Garden?

USER: I want to depart on 09/18 and return from PHX on 09/20.

ASSISTANT: I have checked with your requirement, here is a flight with 1 connection. Price of flight ticket is 100. Can I proceed it?

USER: Sure, please book the ticket.

ASSISTANT: Your ticket has confirmed with 1022, and Frontier airline.

USER: Thank you for booking the ticket.

ASSISTANT: Thank you for reaching us.