You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning a trip to New York city, can you please book me a ticket from IAH to JFK?

ASSISTANT: Sure, may I know the travel dates?

USER: My preferable journey dates are from 03/09 to 03/11.

ASSISTANT: Can I know your good name please?

USER: My name is Kevin Wilson.

ASSISTANT: Delta airlines is having a flight on that route with travel charge of 100, shall I proceed booking?

USER: Please book my ticket with this flight.

ASSISTANT: Your ticket has been booked with flight-1025, have a safe journey.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.