You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Parker.

ASSISTANT: How can I help you?

USER: I have to change my trip dates in my previous reservation due to my event got postponed. So please help me with changing my reservation.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Sure, I am ready to wait for your response.

ASSISTANT: I found your reservation, may I know your travelling dates?

USER: That's great. I need to travel on dates of Aug 17 and Aug 19.

ASSISTANT: Can you please provide me your airport codes?

USER: Sure, I would like to travel from SFO to LAS.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: There is a flight with 1 connection in Southwest airlines and price is 100. Shall I proceed?

USER: That is fine, please proceed with booking.

ASSISTANT: Ok, your ticket is booked with the flight 1021.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.