You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Jessica Adams.

ASSISTANT: Nice to meet you.

USER: Could you please help me to book a flight ticket from ORD to attend a client meeting in PHL?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: I want to depart on Nov 8th and my return date will be on Nov 10th.

ASSISTANT: May I know in which class do you prefer to travel?

USER: I don't have any class preference.

ASSISTANT: Do you have any time concerns?

USER: I want to return in the afternoon.

ASSISTANT: Ok, please wait for a while.

USER: Sure. Make sure I need a direct flight.

ASSISTANT: Sure, please wait.

USER: Ok.

ASSISTANT: Sorry to say that there are no flights available for you on those dates with your given details.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your information.