You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you help me in changing my existing reservation?

ASSISTANT: Sure, I will help you with that. May I know your name please?

USER: I am John Perez.

ASSISTANT: I found a reservation, can you please share your preferable journey dates?

USER: I want to travel on 05/01, and return on 05/03.

ASSISTANT: Can you please share your source and destination airport codes?

USER:  I need to leave from my nearest airport LAX to reach OAK.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need single connection.

ASSISTANT: Is there any specifications?

USER: No.

ASSISTANT: I found a ticket for you with price of 100, flight number is 1025 in economy class and connection is 1. Is it ok for you?

USER: Proceed with the booking.

ASSISTANT: I confirmed your ticket successfully.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.