You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Rebecca Wright here.

ASSISTANT: Wright, how can I help you?

USER: I want to meet my twin sister, so please book my ticket from PHL to PHX.

ASSISTANT: Sure, can you please tell me your travel dates?

USER: My itinerary dates are 02/23 and 02/25.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: There is a flight available with Delta airlines and the ticket costs you 100 only. Shall I book the ticket for you?

USER: Please book my ticket.

ASSISTANT: Wright, your ticket is confirmed and your flight number is 1015.

USER: Thank you.

ASSISTANT: You are welcome and happy journey.