You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: I am Jason Miller, help me to change my reservation as my plan to meet my uncle is postponed. Can you help me with that?

ASSISTANT: Sure, I will change your reservation. Please wait for a while.

USER: Ok.

ASSISTANT: There is no reservation done on your name. Thank you for approaching us.

USER: Ok, thank you for the information.