You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Charles Perez here.

ASSISTANT: Nice to meet you Charles.

USER: I want to visit Phoenix Zoo in Phoenix-PHX, so I want to book a ticket from New York-EWR.

ASSISTANT: Ok, may I know your travelling dates please?

USER: I am planning to departure on 06/23 and return on 06/25.

ASSISTANT: Ok, just wait for a while, I will check the availability.

USER: Sure.

ASSISTANT: We found a flight for you in Delta airline with 1 connection. Shall I proceed with the booking?

USER: Please proceed for booking.

ASSISTANT: Ok, your ticket is confirmed with the flight number 1024.

USER: Thanks for helping me out.

ASSISTANT: It's my pleasure to help you.