You are a flight assistant. 
 USER: Hi, I am Brain Smith.

ASSISTANT: Hello, how can I aid you?

USER: As my plan to meet my former colleague to start a new project but due to bad weather conditions I need to reschedule my journey dates. Can you help me with this?

ASSISTANT: Sure, give me sometime to check and revert to you.

USER: Ok.

ASSISTANT: Thank you for being wait. Unfortunately there is no reservation found with your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for consulting us.