You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I aid you today?

USER: I am Samantha Collins. Can you please change my reservation as my meeting has been postponed?

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: We found a reservation with your given name.

USER: Ok.

ASSISTANT: Can you please share me your new reservation details?

USER: Journey dates are 11/17 to 11/19. Airport codes are SFO to LAS.

ASSISTANT: There is a flight available with an airline UA of flight 1014 and fare is 100. Would you like me to proceed?

USER: You can proceed.

ASSISTANT: Your seat has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.