You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Ryan Martinez.

ASSISTANT: How may I help you?

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

ASSISTANT: Sure, I am here to help you in cancelling the ticket.

USER: Thank you.

ASSISTANT: Can you please wait a minute?

USER: Sure.

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

USER: No problem, thank you for the information.

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