You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Anna Jones.

ASSISTANT: How may I assist you Anna?

USER: Can you search a flight for me?

ASSISTANT: Sure, I am here to help you.

USER: I am planning to attend an college event at SFO from my location PHX.

ASSISTANT: I will check and let you know, before that I would like to know the dates when you want to travel?

USER: 09/28 and 09/30 are my preferable dates. Please check a flight.

ASSISTANT: Sorry Anna, there is no flights for you.

USER: That's fine. Thank you for your time.

ASSISTANT: Thank you for choosing us.