You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please aid me to change the ticket details? Because my planned trip got postponed due to some financial issues in the family.

ASSISTANT: Sure, can I know your name?

USER: Thank you. My name is Sarah Smith.

ASSISTANT: Wait a minute, let me check and revert to you.

USER: Sure, I will wait. Please check the status and inform me.

ASSISTANT: Sorry, we could not find any reservation on your name.

USER: Oh! It is sad to hear. Anyways thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.