You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I am Laura Miller, I want to book a flight ticket from DCA to SFO to meet my friend. Can you book a flight ticket under fare of 1000?

ASSISTANT: Please forward your travelling dates?

USER: I will fly on 01/14 and return on 01/16.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Thanks for providing your details, no flights are available with your specified details.

USER: Ok, thank you for the details.

ASSISTANT: Thanks for opting us.