You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Owing to emergency,I need to change my recent reservation. Please help me in that.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please provide me your name?

USER: My name is Jason Hill.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for approaching us.