You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I like to taste variety of food item so, I want to attend for the food festival.

ASSISTANT: Ok.

USER: Can you please book a ticket for me?

ASSISTANT: Sure. May I know your name please?

USER: I am Nancy Johnson.

ASSISTANT: Ok, please provide codes of airport.

USER: Airport codes are PHL to PHX.

ASSISTANT: Ok. When are you planning to travel? Nancy Johnson.

USER: Start from 09/18. And return on 09/20. I need 1 connection.

ASSISTANT: Thanks for sharing all your journey details. We tried to check with connecting flights, but no flights are available on particular days of your journey.

USER: Ok. Thank you.

ASSISTANT: Thanks for availing us.