You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Jacob Wilson. I like to travel from PHX to LAS for a sports camp in winter section, can you help in booking a flight ticket?

ASSISTANT: May I know your travelling dates?

USER: My date of travelling is on 11/29 to 12/01.

ASSISTANT: Sorry to say that there is no flight found.

USER: That's ok. Thank you.

ASSISTANT: Thank you for contacting us.