You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Pamela Wilson.

ASSISTANT: How may I help you?

USER: Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, please wait a moment let me check with your name in the reservation list and know you the current status.

USER:   Ok.

ASSISTANT: Thank you for your time.Sorry, there is no reservation matching with your name in our portal to make changes further.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us. Have a great day.