You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you?

USER: I would like to cancel my ticket due to my illness. Will you help me to cancel my reservation?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Please check the reservation list with my name Pamela Green.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting.

USER: Ok.

ASSISTANT: We didnt found any reservation by this name.

USER: Thanks for the quick response.

ASSISTANT: Thank you for contacting us.