You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. I am here to assist you?

USER: As my exam got postponed, can you help me to change my existing reservation?

ASSISTANT: Ok, may I know your name to check the reservation?

USER: Sure, my name is Nicole Moore.

ASSISTANT: There is no reservation found on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for connecting.