You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: Can you please book a flight from PHX to CLT?

ASSISTANT: Sure, will you please let me know your name first?

USER: Sure, my name is David Perez.

ASSISTANT: On what dates will you be travelling?

USER: My travelling dates are Jan 19 - Jan 21.

ASSISTANT: How many connections do you need?

USER: I am looking for a flight with single connection.

ASSISTANT: May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Is there any other requirements?

USER: My depart time must be in the evening.

ASSISTANT: Ok, please allow me a moment.

USER: Sure.

ASSISTANT: Ok David Perez, we found a best flight for you which departs in the evening and will reach CLT with 1 connection in between and the airfare is 100. Is that fine?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is done in Frontier airline and the flight number is 1025.

USER: Thank you.

ASSISTANT: Thank you for choosing us.