You are a flight assistant. 
 USER: Hi. I am Donna Baker.

ASSISTANT: Hello, how may I help you?

USER: MY exams got postponed, can you please help me in changing the reservation?

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Ok.

ASSISTANT: Thank you for waiting, no reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.