You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight from IAD to attend a meeting at PHL. Can you help me with booking?

ASSISTANT: Sure, I am willing to help you for this. Could you please share me your travel dates?

USER: I will fly on June 23 and return on June 25.

ASSISTANT: May I know your name please?

USER: My name is Kathleen Allen.

ASSISTANT: Do you have any specifications regarding your journey?

USER: I prefer a connecting flight.

ASSISTANT: Sorry for inconvenience, no flights are found with your specifications.

USER: Ok, thank you for the information.

ASSISTANT: Thank you very much for approaching our agency.