You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Anthony Hall from Washington.

ASSISTANT: Nice meeting you Hall.

USER: Thanks, I want to change my travel dates in my previous reservation. can you please help me with that?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your previous reservation.

USER: Ok.

ASSISTANT: Yes, I have found your reservation.

USER: Oh! That's great.

ASSISTANT: Can you please provide your new planned dates of travelling?

USER: I want to take off on 01/23 and book my return ticket also on 01/25.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I would like to fly from IAD and destination airport is LAX.

ASSISTANT: Please wait a moment to check the flights availability and I will revert back to you.

USER: Ok.

ASSISTANT: Based on your information, I have found a flight with 1 connection with the fare of 100 provided by Southwest airlines. Shall I proceed with this?

USER: That's perfect, please confirm this flight ticket for me.

ASSISTANT: Ok, your ticket has been booked in flight number 1002.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great journey.