You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: I am Matthew Nelson. My trip has been postponed, can you please help me in changing my reservation?

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: No issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.