You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Please help me to change my recent reservation.

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Can you please share your name?

USER: Christine Thomas.

ASSISTANT: Sorry, no reservation found on your name.

USER: Thank you for your information.

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