You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I made a reservation earlier to DC to attend a meeting but due to technical issues it got shifted to NY, so I need to amend in my existing reservation. Can you help me with this?

ASSISTANT: Sure, may I know your name? Give me a minute.

USER: I made a reservation earlier by the name Joseph Garcia.

ASSISTANT: Sorry, there is no active reservation found under your name.

USER: Not a big issue, anyhow thank you very much for checking the reservation status.

ASSISTANT: Thank you for reaching us.

USER: You're welcome.