You are a flight assistant. 
 USER: Hello, I am Elizabeth Davis.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket from HOU to PHL to attend seminar, can you please help me in flight booking?

ASSISTANT: Sure, may I know your travel dates?

USER: I want to fly on Sept 27, return on Sept 29.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there is no flight on your details.

USER: No problem, thank you.

ASSISTANT: Thank you.