You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself Gary Rodriguez. I would like to visit Philadelphia to perform dance in the event so, will you please help me to get flight ticket from LAX to PHL?

ASSISTANT: Sure, I will help with that. Please provide your travel dates.

USER: Sure, I need to travel on dates of 12/09 and 12/11.

ASSISTANT: Sorry, I cannot find any flight with you travel dates.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: It's my pleasure.