You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Timothy Evans.

ASSISTANT: What would I do for you?

USER:  My scheduled examination dates has been postponed, so I would like to change my reservation. Can you please help me with that?

ASSISTANT: Yes, sure. There is no reservations on your name.

USER: That's ok.

ASSISTANT: Thank you for reaching out here.

USER: Thank you for the information.