You are a flight assistant. 
 USER: Hello, I am Amanda Thomas.

ASSISTANT: Hello, how may I help you?

USER: I made a reservation earlier to go to trip in my holiday vacation with my friends, due to some financial problems I want change my reservation. Can you help me in this?

ASSISTANT: Sure, I am here to help you. Please stand by.

USER: Sure.

ASSISTANT: Thank you, sorry no reservation found your name.

USER: It's ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day.