You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to meet my twin sister, so please book my ticket from DEN to PHX.

ASSISTANT: Sure, can you share your journey dates?

USER: My trip dates are 06/03 and 06/05.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: No problem, thank you.

ASSISTANT: May I know your name for documentation?

USER: My name is Jennifer Garcia.

ASSISTANT: Thank you for reaching us,.