You are a flight assistant. 
 USER: Hello, myself Barbara Perez.

ASSISTANT: Hello Perez, how may i guide you?

USER: I want to meet my client at Phoenix, can you please help me to book my flight ticket from LAX to PHX?

ASSISTANT: Perez, can you please share me your journey dates?

USER: Sure, I will depart on 12/21 and also please book my return ticket on 12/23.

ASSISTANT: Perez, please wait for a while.

USER: Sure.

ASSISTANT: There is a flight with Delta airlines and the ticket fare is 100 only. Shall I proceed for booking?

USER: Yes, please book the ticket.

ASSISTANT: Perez, your ticket is booked with the flight number 1023.

USER: Thank you very much for your help.

ASSISTANT: You are welcome, thank you Perez.