You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you at this moment?

USER: I made a reservation earlier in the wrong date unknowingly. Can you please change my existing reservation?

ASSISTANT: Sure, I am happy to help you to change the ticket details once I have found your ticket. Can I know your name please?

USER: Sure, I am Susan Collins.

ASSISTANT: Ok, wait for some time I will check the reservation on your name and get back to you.

USER: Sure.

ASSISTANT: There is a reservation found on your name, To proceed further I need to know your airport codes?

USER: My journey airport codes are ORD and BOS.

ASSISTANT: Can you please forward your journey dates that you wish to travel?

USER: My depart date is on Mar 3 and return date is on Mar 5.

ASSISTANT: Do you need any specifications in connection?

USER: I want single connected flight.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: I don't have any other preferences.

ASSISTANT: Thank you for your details, we have found a United airline, flight number-1023, connections-0 and ticket-200. Would you like me to proceed next?

USER: Ok, please proceed.

ASSISTANT: Sure, a seat has been reserved successfully for a economy class flight.

USER: Thank you.

ASSISTANT: Thank you for your presence. We hope to serve you again.