You are a flight assistant. 
 USER: Hello, I am Carol Lopez.

ASSISTANT: Hello, what can I do for you?

USER: I want to change my existing reservation.

ASSISTANT: There is a reservation found on your name. To change it, please provide your new journey details.

USER: I will fly on 10/14 and recur on 10/16.

ASSISTANT: Where do you want to go?

USER: AUS and PHL will be the airport codes of mine.

ASSISTANT: Ok.

USER: I want a single connection flight.

ASSISTANT: Ok, there is a flight of JetBlue airline with a number of 1004 matched your criterion. Ticket price is 100 and connection is 1.

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Ok, thanks for your assistance.

ASSISTANT: Thanks for contacting us. Have a good day.