You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Catherine Gonzalez. Due to some personal work I can not able to travel, so can you help me to change my recent reservation?

ASSISTANT: Ok, please wait for a while I will let you know about your current reservation status.

USER: Sure, I will wait for your reply.

ASSISTANT: Thanks for your time, I have checked your reservation with your name I could not find any reservation on that name.

USER: Ok fine, anyways thanks for your information.

ASSISTANT: Thanks for reaching us.