You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Sandra Phillips. My scheduled examination dates has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: Sure, we are here to help you. Wait for some time I will check the reservations on your name and get back to you.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting there is no reservation found on your name. Thanks for approaching us.

USER: That's ok, not an issue. Anyways, thank you for the information.