You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, may I know your name to proceed further?

USER: Myself Sandra Phillips.

ASSISTANT: Do you need any connections between your trip?

USER: I need a single connection.

ASSISTANT: Is there any other requirements?

USER: I would like to return in the afternoon time.

ASSISTANT: May I know your preferred dates to reserve your seat?

USER: I want to fly on May 22 and return on May 24.

ASSISTANT: We regret to inform you that there is no flights going on your way.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for contacting us.