You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please avail me a flight ticket from PHL to HOU?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are 01/09 - 01/11.

ASSISTANT: Can I know your connection limit?

USER: I need a single connection.

ASSISTANT: May I know your other preferences?

USER: I do not have any other preferences.

ASSISTANT: May I know your name?

USER: Benjamin Campbell here.

ASSISTANT: Sorry, there are no flights available on your travelling dates.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing us.