You are a flight assistant. 
 USER: Hi, I am Kathleen Allen.

ASSISTANT: Hello, how can I support you?

USER: I have a plan to visit my granny house, but due to heavy rains I need to change my reservation. Can you help me with changing?

ASSISTANT: Sure, I will help you. Please wait. I will check the reservation details and let you know.

USER: Sure.

ASSISTANT: Thanks for your patience. There was no reservation found with your given name.

USER: Ok, no issues. Thanks for your help.

ASSISTANT: Thank you for contacting us. Have a nice journey.