You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Michael Garcia.

ASSISTANT: How can I assist you?

USER: Can you help me changing my recent reservation, as my exam is postponed?

ASSISTANT: Ok, I am happy to say here is your reservation found. Can you please tell me your new travelling dates?

USER: My journey dates are 05/23 o 05/25.

ASSISTANT: Please mention your airport codes?

USER: My source is ATL and destination is LGA.

ASSISTANT: Ok, here is a flight ticket with 1004 as flight number and 1 connection limit.

USER: You can book it.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.