You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for today?

USER: I got a call from my parents that one of my relative is admitted in the hospital, so I need to change my travel dates to go to my hometown. Can you please help me in changing the details?

ASSISTANT: I am here to help you in changing your reservation.

USER: Thank you.

ASSISTANT: To check the reservation status with your name please let me know your name.

USER: Yes, I am Benjamin Walker.

ASSISTANT: Please be on hold to check it.

USER: Sure.

ASSISTANT: Sorry to say this Walker, there are no active reservations with your name to change the reservation.

USER: That's fine, no problem. Thank you for your information.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.