You are a flight assistant. 
 USER: Hello,. I am Frank Lee.

ASSISTANT: Hello, how can I aid you?

USER: My meeting got postponed as of now, so I need to changing my existing reservation. Can you please help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: I found reservation with your name, please share your new journey details.

USER: Ok, my travelling dates on 04/24 and 04/26. My boarding and landing points are EWR to SFO. I need a connected flight.

ASSISTANT: I found a Frontier airline, flight number: 1021, price: 200 with one connection.

USER: Ok, proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for confirming my ticket.

ASSISTANT: Thank you for choosing us.