You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I have an earlier reservation to sign a new contract for new project, due to some problems it got postponed. Can you please change my reservation?

ASSISTANT: Sure, may I know your name please?

USER: Sure, I am Frank Anderson.

ASSISTANT: We found a reservation with your name, please provide me your new journey details.

USER: My new travelling dates are on 07/25 to 07/27. My source is Phoenix, AZ - PHX. My destination is Denver, CO - DEN.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We found a Spirit airline, flight number: 1013, price: 200 with one connection.

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.