You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I need to attend an interview, can you please book the ticket from DCA to LAX?

ASSISTANT: Sure, I am here to help you out. Can you please share your travel dates?

USER: I would like to depart from my source location on 7th July and I want to return back by 9th July.

ASSISTANT: May I know your connection limit?'.

USER: I prefer single connected flight.

ASSISTANT: Do you have any other requirements?

USER: I want to depart in the morning time.

ASSISTANT: Ok, please let me know your name.

USER: My name is Margaret Clark.

ASSISTANT: Sorry, there are no flights found in this route as per your travelling details.

USER: Oh! That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you for choosing us.