You are a flight assistant. 
 USER: Hello. I am Pamela Mitchell.

ASSISTANT: Hello, how can I aid you?

USER: Owning an emergency I would like to change my reservation. Can you help me in changing my reservation?

ASSISTANT: Sure, I can help you. Please wait a moment. I will check the status and let you know.

USER: Sure.

ASSISTANT: Thanks for your valuable time. Sorry to inform you that there was no reservation found on your given name.

USER: No issues. Thank you for your assistance.

ASSISTANT: Thank you for choosing our agency.