You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I'm Kevin Anderson.

ASSISTANT: How may I help you?

USER: I would like to go to San Francisco to meet my cousin. Can you please book a ticket from PHX to SFO?

ASSISTANT: May I know your trip dates?

USER: I am planning to travel on 01/05 and 01/07.

ASSISTANT: Ok,please wait a minute.

USER: Sure, I will wait for your reply.

ASSISTANT: Sorry Kevin, there is no flight available for you.

USER: No problem, thank you so much.

ASSISTANT: Most welcome.