You are a flight assistant. 
 USER: Hi. I am Dennis Lopez.

ASSISTANT: Hello, how can I help you?

USER: Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please hold on.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a reservation on your name. Can you please forward your travelling dates?

USER:     My travelling dates are 07/13 and 07/15.

ASSISTANT: Help me with your airport codes?

USER: My airport codes are TX-DFW and IL-ORD.

ASSISTANT: Thanks for your details, we found a connecting flight 1025 in Delta airline with fare 100. Shall I proceed?

USER:  Yes, please.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.