You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Virginia Clark.

ASSISTANT: How may I render you today?

USER: Please, cancel my recent reservation as my their is a sudden visitation at my friends place.

ASSISTANT: Ok, I will help you for sure.

USER: Thank you.

ASSISTANT: Please stand by,I will check the reservation list and let you know.

USER: Sure.

ASSISTANT: Thank you for your patience.

USER: Ok.

ASSISTANT: I have checked the reservation list, but could not find your name to proceed further.

USER: Ok, no issues. Thank you for quick response.

ASSISTANT: Thank you for reaching us.