You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what kind of assistance are you expecting from my end?

USER: Can you help me to change my reservation to next week?

ASSISTANT: Sure, I will be your helping hand at this moment. Please let me know your name to check whether any active reservation is found on your name or not.

USER: My name is Kathleen Thomas.

ASSISTANT: Sorry Kathleen Thomas, this user don't have any active reservation in our reservation portal.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.