You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Christine Collins here.

ASSISTANT: How can I help you today?

USER: Could you book my ticket from PHX to MCO?

ASSISTANT: Please tell us your travel dates.

USER: My itinerary dates are 05/12 and 05/14.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Flight 1007 of UA airlines is available for you.

USER: Go ahead to book my ticket.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.