You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you now?

USER: Can you please help me in booking a flight ticket from DCA to OAK?

ASSISTANT: Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: Sure, my travel dates are from Feb 11 to to Feb 13.

ASSISTANT: Do you have any connection limit?

USER: I would prefer connection limit.

ASSISTANT: May I know about your other requirements for the trip?

USER: I would like to depart in the morning.

ASSISTANT: Let me know your name to proceed further.

USER: Myself Kenneth Lewis.

ASSISTANT: Sorry, we have not found any flights running on your desired routes.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.