You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need an economy class flight to Houston to see its arts and culture in the month of August. Can you help me in booking a flight ticket from PHL?

ASSISTANT: Sure, please share your travel dates.

USER: Ok, my travel dates are Aug 27 and Aug 29.

ASSISTANT: May I know your good name?

USER: Ok, my name is Mary Lee.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Please wait a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for availing us.