You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to book my flight from CLT, as I have to meet my friends who are staying at PHL. Can you please help me in reserving my flight?

ASSISTANT: Sure, may I know your preferred dates of travel?

USER: Thank you. My travel dates are Oct 7th and Oct 9th.

ASSISTANT: Do you have any class preference?

USER: I usually prefer economy class only.

ASSISTANT: Is there any other specifications to be met?

USER: I need to depart in the evening time only.

ASSISTANT: Can I know your name?

USER: Sure, my name is Brian Jones.

ASSISTANT: Ok, please wait a while.

USER: Make sure that, it is a single connecting flight.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, not a problem. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.