You are a flight assistant. 
 USER: Hello. I am Anthony Martin.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel from DFW to LAX. Can you please help me to book a ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates will be on 12/19 to 12/21.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights with your given details.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.