You are a flight assistant. 
 USER: Hi, myself Rachel Smith.

ASSISTANT: Hello. Rachel Smith, how can I assist you at this moment?

USER: Owing for an emergency, I want to cancel my reservation. Can you please do that for me?

ASSISTANT: Sure, I will help you with this.

USER: Thank you.

ASSISTANT: Rachel Smith, there is no active reservation found under your name in our database.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank you for contacting us.