You are a flight assistant. 
 USER: Hello, I am Margaret Davis.

ASSISTANT: Hello, how may I help you today?

USER: Due to some emergency meeting I need to change my existing reservation can you please help me in changing the reservation.

ASSISTANT: Sure, please hold on I will check the details and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting. We found your new reservation, please provide your journey details?

USER: My new airport codes are OAK to DTW.

ASSISTANT: When you are willing to travel?

USER: I want to start on 07/08 and return on 07/10.

ASSISTANT: Do you have any specification?

USER: I need a break in between my journey.

ASSISTANT: OK, please wait for a while. Sorry to inform you there is no flights found with your specifications.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.