You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kevin Baker.

ASSISTANT: Baker, how may I guide you?

USER: I want to change my existing reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure Baker, I will help you for that. Let me check your reservation status in our records.

USER: Sure, take your time.

ASSISTANT: Baker, sorry for inconvenience no reservation is found on your name in our database.

USER: That's ok, thank you for your information.

ASSISTANT: You are most welcome.