You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: As my exam got postponed due to heavy rain, can you please help me with changing my reservation?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please share your name to check the reservation list?

USER: Sure, I am Robert Lopez.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry to inform you that there was no reservation found with your name.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for connecting with us.