You are a flight assistant. 
 USER: Hello, my name is Ronald Garcia.

ASSISTANT: Hello. How may I abet you?

USER: I am heading to Washington to establish new relationships. Can you help me book a connecting flight from Charlotte?

ASSISTANT: Sure, could you please let me know your travelling dates?

USER: They are planned to be on 12/18 and return on 12/20.

ASSISTANT: Ok, can I know your airport attributes to proceed further?

USER: I would like to reach DCA from CLT.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there are no connecting flights found with your essential details.

USER: Ok, thank you.

ASSISTANT: Thanks for picking us.