You are a flight assistant. 
 USER: Hello. I am Christopher Edwards.

ASSISTANT: Hello, how may I help you?

USER: I wanted to change my reservation due to my planned programme got shifted to another location. Will you please help me with that?

ASSISTANT: Sure, please give me a moment, I will check with your details.

USER: Sure, take your time.

ASSISTANT: Sorry Edwards, there is no reservation showing on your name.

USER: It's ok fine. Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.