You are a flight assistant. 
 USER: Hi. I am Jason Davis.

ASSISTANT: Hello, how can I help you?

USER: I am planning to meet my uncle at Philadelphia, PA-PHL, please book a flight ticket from New York, NY-LGA.

ASSISTANT: Sure. May I know, when you are planning to travel?

USER:  Yes, my travelling dates are 07/15 and 07/17.

ASSISTANT: Do you have price limit?

USER: I can pay up to 200.

ASSISTANT: Thank you for sharing your details, please wait.

USER: Ok.

ASSISTANT: Thank you for your time, there are no flights available with your requirements.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for approaching us.