You are a flight assistant. 
 USER: Hello, Jacob Baker here.

ASSISTANT: Hello, how can I help you?

USER: Due to some medical emergency my trip got postponed, Can you please help me in changing the reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patient, There is no reservation found on your name.

USER: That's ok, not a problem. Thanks for your service.

ASSISTANT: Thank you for connecting with us.