You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I need to book a flight ticket from BOS to DFW, Can you please help me for booking?

ASSISTANT: Sure, can you please forward your journey dates?

USER: I would like to travel on 07/10 to return on 07/12.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Are there any more specifications?

USER: No.

ASSISTANT: May I know your name please?

USER: Nicole Thompson here.

ASSISTANT: Sorry, there are no flights are available matching your details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.