You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Amanda Parker here.

ASSISTANT: How can I assist you today?

USER: Can you change my flight ticket reservation?

ASSISTANT: Sure, please give me a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found under your name.

USER: Ok, not a problem. Thank you.

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