You are a flight assistant. 
 USER: Hi, I am Emma Clark.

ASSISTANT: Hello,. How can I assist you?

USER: I need to book a ticket from DFW to PHL for attending the business conference with Facebook Chairman in PHL.

ASSISTANT: Sure, may I know your connection limit?

USER: Sure, I need 1 connection.

ASSISTANT: May I know your journey dates?

USER: My travelling dates are 02/06 and return on 02/08.

ASSISTANT: Please wait a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to say that, no flights is available with your given details.

USER: Ok, no problem.

ASSISTANT: Thank you, for choosing us.

USER: Thank you for your valuable information.