You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in finding a flight from DCA to SEA?

ASSISTANT: Sure, can I have your travel dates please?

USER: My trip dates will be Aug 9th to Aug 11th.

ASSISTANT: Can I have your connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Please share me your good name to proceed for further.

USER: I am Patricia Green.

ASSISTANT: Is there any other requirements?

USER: I prefer a flight which should return in the evening.

ASSISTANT: Sorry, there is no flight on your required dates.

USER: Its ok, thank you.

ASSISTANT: Thank you for approaching us.