You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Actually, I have booked a flight ticket in the last month but now I am not willing to travel now due to some problems in my family. Can you please help me to change the details?

ASSISTANT: I will be happy to help you, can you please help me with your name?

USER: Thank you for considering my request. My name is John Martinez.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait for your reply.

ASSISTANT: John, I have not found any reservation under your name in our database.

USER: Oh! It is sad to hear from your end. Anyways, thank you for checking my ticket status.

ASSISTANT: You are welcome and have a nice day.