You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: We friends were planning to change this tour because of the meeting with my family got preponed.

ASSISTANT: Ok.

USER: Can you help me in this with the name of Pamela Walker?

ASSISTANT: Sure. Please, wait for a while.

USER: Ok.

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

USER: Not a issue, thank you for your information.

ASSISTANT: Thank you for contacting us.