You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to book my ticket from Phoenix. Could you please help me with booking a flight ticket from PHX to JFK?

ASSISTANT: Sure, please share your journey dates?

USER: My planned journey dates are Apr 21 and Apr 23.

ASSISTANT: Do you have any specifications?

USER: I am looking for a connecting flight in my journey.

ASSISTANT: Is there any class preferences?

USER: No, I am comfortable with any class.

ASSISTANT: We found a flight in United airlines, flight number is 1011 with single connection and price is 100 economy class. Shall I proceed?

USER: That's fine for me, please proceed with that ticket booking.

ASSISTANT: May I know your good name?

USER: Sure, myself Melissa Perez.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.