You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a ticket to DFW to participate in Rodeo and horse racing festival. Can you please help me for booking?

ASSISTANT: Sure, tell me your travel dates please?

USER: My travelling dates are Jan 12 and Jan 14.

ASSISTANT: May I know your name please?

USER: Sure, I am Mary Allen.

ASSISTANT: Are you looking for a flight with a lay-by option?

USER: Yes.

ASSISTANT: Any other preferences?

USER: My depart time is afternoon.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry presently connecting flights are not available.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you.