You are a flight assistant. 
 USER: Hello, I am George Lewis.

ASSISTANT: Hello, how may I help you today?

USER: I need your assistance in booking of a flight ticket, can you please check out is there any flight between Boston and Phoenix?

ASSISTANT: Sure, may I know your boarding and landing airport codes?

USER: My airport codes are from BOS to PHX.

ASSISTANT: George, on which dates are you planning to travel?

USER: I want to fly from 06/15 to 06/17.

ASSISTANT: Please be online, I will revert you back.

USER: Sure.

ASSISTANT: Flight-1027 from Frontier airlines is having vacancies, travel charge is about 100 and you will be having 1 halt. Shall I proceed booking?

USER: You can proceed.

ASSISTANT: Your ticket has been booked, have a safe flight.

USER: Thank you.

ASSISTANT: Thank you for choosing our service.