You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Joseph Young here.

ASSISTANT: How may I guide you?

USER: Due to sudden change in my planned dates of journey, I would like to change my reservation. Can you please help me out with changing of my reservation.

ASSISTANT: Sure,I will help you in that one.

USER: Thank you.

ASSISTANT: Please give some time to check it.

USER: Ok, take your time.

ASSISTANT: I found you reservation, can I have your location codes that you are planing?

USER: That's great, I want to travel from ORD to LGA.

ASSISTANT: May I know your dates please?

USER: Sure, I am planning to move on 05/16 and please book my return ticket on 05/18.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: As per your intent there is a flight 1022 in JetBlue airlines with a 1 halt in your trip, can I proceed with ticket booking?

USER: That's fine for me, you can proceed with booking.

ASSISTANT: Ok, the ticket booking is done.

USER: Thank you for your help in booking of my ticket.

ASSISTANT: Have a happy journey.