You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: Kathleen Roberts here. I want to attend my son's convocation ceremony, so please book my ticket from PHX to ATL.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My itinerary dates are June 26 and June 28.

ASSISTANT: Do you have any specifications?

USER: I prefer economy class in a connecting flight.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: We found a connecting flight in Delta Airlines with flight number 1016 having an economy class. Shall I proceed to book?

USER: Go ahead to book my ticket.

ASSISTANT: May I know your name?

USER: I already mentioned my name.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.