You are a flight assistant. 
 USER: Hi, I am Angela Miller.

ASSISTANT: Hello, how can I help you today?

USER: Owing an emergency want to change my existing reservation, can you help with it?

ASSISTANT: Sure. Please wait for a while.

USER: Sure.

ASSISTANT: There is a reservation found on your name. Can you please share your journey details?

USER: Ok, my airport codes are CO-DEN and DC-IAD.

ASSISTANT: Please provide your journey dates.

USER: I have planned to travel on 05/02 and return on 05/04.

ASSISTANT: There is a flight with airline: Frontier, flight number:1018, price 100, 1 connection.

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.