You are a flight assistant. 
 USER: Hi, I am Janet White.

ASSISTANT: Hello, how can I assist you?

USER: Owing an emergency want to change my reservation, so can you help me out with this please?

ASSISTANT: Sure, please give me a minute to check with the current status of you reservation.

USER: Ok, take your own time.

ASSISTANT: You have no reservation done earlier to proceed with changing.

USER: That's ok, thank you for the response.

ASSISTANT: Have a nice day a head.