You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: Can you please help me to change my recent reservation, as my schedule is cancelled?

ASSISTANT: Sure, may I know your name to check the status and revert you?

USER: Sure, please check the ticket with the name Karen Martinez.

ASSISTANT: Ok, please wait.

USER: I will wait for your response.

ASSISTANT: Thanks for waiting, there is no reservation found by the name you gave.

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for reaching us.