You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I have to change my reservation as my father want me to travel in the month, can you please help me?

ASSISTANT: Sure, please provide me the name to check for the status.

USER: Sure, my name is Patrick Robinson.

ASSISTANT: Please be on hold, I will get back to you in couple of minutes.

USER: Sure.

ASSISTANT: Thank you for waiting. I'm happy to inform you that I have found a active reservation on your name. Please provide me the new airport codes.

USER: Oh! Great to hear that. I want to travel from SFO to DEN.

ASSISTANT: May I know your planned travel dates?

USER: I want to depart on Aug 2nd and return on Aug 4th.

ASSISTANT: Would you like to prefer an economy class or a business class for this journey?

USER: I am comfortable with any class.

ASSISTANT: Ok, please provide me the airline preferences.

USER: I would prefer for a United Airlines.

ASSISTANT: Do you need any break in between your journey?

USER: Yes, I need a flight with single connection.

ASSISTANT: I didn't find as you preferred one i.e United Airlines. I got a airlines in Hawaiian, can I proceed further with this airlines?

USER: That's fine, you can proceed.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1022 in Hawaiian Airlines with a minimum airfare of 200.

USER: Thank you very much for your help.

ASSISTANT: Successfully I have changed your reservation status, thank you for reaching us.