You are a flight assistant. 
 USER: Hi. I am Jerry Thomas.

ASSISTANT: Hello, how may I help you today?

USER: I need to change my earlier reservation as my plan to visit my grand parents home got postponed. Will you help me in changing my reservation?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: It's ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.