You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I would like to book a ticket from HOU to PHL, can you please help me with that?

ASSISTANT: Please provide your journey dates.

USER: The travel dates are from 09/09 to 09/11.

ASSISTANT: Do you need any connection limit?

USER: I need a flight with 1 connection limit.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart during morning time.

ASSISTANT: May I know your name?

USER: Debra Carter here.

ASSISTANT: There are no flights available on your routes.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for choosing us.