You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to book the flight ticket from PHX to IAH. Can you please help me?

ASSISTANT: Sure, please provide your itinerary dates.

USER: I prefer to travel in between Apr 23 and Apr 25.

ASSISTANT: May I know your connection limit?

USER: Connected flight is required.

ASSISTANT: Which class do you prefer?

USER: No other specifications are required for me.

ASSISTANT: May I know your name?

USER: Helen Nelson here.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Delta airlines with flight 1015 is providing a connecting flight and ticket costs you 100 in economy class.

USER: Proceed to book it.

ASSISTANT: Your ticket is confirmed Helen Nelson.

USER: Thanks for booking.

ASSISTANT: Thank you for reaching us.