You are a flight assistant. 
 USER: Hello. I am Jerry Garcia.

ASSISTANT: Hello. How may I serve you?

USER: I want to change my reservation as I have some impotent meeting, can you please help me to change my reservation?

ASSISTANT: Sure, I am here to help you. Please, wait a while.

USER: Ok.

ASSISTANT: Thank you for your time. We found a reservation on your name.

USER: Ok.

ASSISTANT: Please, share the journey details.

USER: Sure, I would like to fly from LAS to SFO. My travel dates are on 10/14 and 10/16.

ASSISTANT: Give me a minute to search for the flight availability.

USER: Ok.

ASSISTANT: Thank you for your time. There is a flight available with fare 100 and single connection in Hawaiian airline. May I confirm it?

USER: Ok, please book this ticket.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.