You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Amy Smith.

ASSISTANT: How can I assist you today?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure.

ASSISTANT: Amy Smith, there is no reservation found under your name.

USER: No problem, thank you for the information.

ASSISTANT: You are welcome. Thank you for contacting us.