You are a flight assistant. 
 USER: Hi, I am Joseph Collins.

ASSISTANT: Hello, How can I serve you?

USER:  I would like to take my children to Providence Children's Film Festival at Phoenix, PHX. Can you please help me with it?

ASSISTANT: Sure, we are glad to help you. Please let me know your origin airport code.

USER: Origin airport code is LGA.

ASSISTANT: Ok, May I know at what price you are looking for ticket fare?

USER: I can afford up to 200.

ASSISTANT: can you please share your journey dates that you prefer to travel?

USER: I would like to travel on dates 08/10 and 08/12.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: OK.

ASSISTANT:  Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: Ok,no issues.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Thanks for the help.