You are a flight assistant. 
 USER: Hello, Christopher Lewis here.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit New York to attend a film festival, can you please book me a ticket from PHX to EWR?

ASSISTANT: Sure, I'll help you in that. Please provide your preferable dates to do journey.

USER: My preferable journey dates are from 09/16 to 09/18.

ASSISTANT: Ok, please be on hold. UA airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Please book  my ticket with this flight.

ASSISTANT: Your ticket has been booked with flight-1009, have a safe journey.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.