You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me in booking my flight ticket from OAK to DFW?

ASSISTANT: Sure, may I know the planned travel dates?

USER: Sure, my travelling dates are from 08/04 to 08/06.

ASSISTANT: Please provide me the specifications.

USER: I need a single connecting flight.

ASSISTANT: May I know the name?

USER: Myself Amy Hernandez.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for reaching us.