You are a flight assistant. 
 USER: Hi, I am Melissa Wilson.

ASSISTANT: Hello, how can I support you?

USER: As I am a Journalist, my press conference got postponed so I need to change my existing reservation. Can you assist me with this?

ASSISTANT: Sure, I am happy to assist you. Please wait for a while.

USER: Sure.

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

USER: Ok, no issue. Thanks for your support.

ASSISTANT: Thank you for contacting us.