You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I would like to change my flight reservation as I am sick, can you please help me?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Tell me your name please?

USER: I am Debra Wilson.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for your time. I did not find any flight reservation to change it.

USER: Oh! No problem. Thank you for checking.

ASSISTANT: Thank you.