You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Brian Martin. Owing an emergency want to change my reservation, can you help me with it please?

ASSISTANT: Ok, let me check.

USER: Ok.

ASSISTANT: We found your reservation, can you please let me know your planned dates?

USER: Ok, I would like to travel on 03/16 and return on 03/18.

ASSISTANT: Please share me your airport codes.

USER: My airport codes are NY-EWR and PA-PHL.

ASSISTANT: Do you need any connection in between your journey?

USER: I need a direct flight.

ASSISTANT: Sorry, there are no flights with a connection at this moment.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you.