You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you please book a ticket from PHL to PHX? As I'm planning to visit my grand parents.

ASSISTANT: When you are willing to travel?

USER: My planned departure and return travel dates are 8th and 10th of September.

ASSISTANT: May, I know your good name?

USER: Yes, my name is Linda Smith.

ASSISTANT: Do you have any connection limit?

USER: My maximum connection has to be 1.

ASSISTANT: Do you have any class preference?

USER: I'm ok with any class.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Oh! That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us.