You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Can you please help me in booking a flight ticket from Oakland, OAK to reach Dallas, DFW?

ASSISTANT: Sure, May I know your travelling dates?

USER: My journey dates are from Jan 26 to Jan 28.

ASSISTANT: Do you have ant connection limit?

USER: I need a connection in between journey.

ASSISTANT: May I know your name?

USER: My name is David Brown.

ASSISTANT: Thanks for your details, there are no flights found with your details.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you.