You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I want to reserve my ticket from DEN to JFK, can you please help me in booking?

ASSISTANT: Can you aid me by providing your travelling dates?

USER: Ok, my planned dates of journey are from May, 01 to May, 03.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a connecting flight.

ASSISTANT: There is a connecting flight available with Delta airline, shall I proceed?

USER: Ok, please go ahead with this booking.

ASSISTANT: May I know your name?

USER: Sure, my name is Catherine Lewis.

ASSISTANT: Your booking is done with flight number 1019. Happy journey.

USER: Thank you for your service in booking my ticket.

ASSISTANT: You are welcome, have a nice day.