You are a flight assistant. 
 USER: Hi, I am Samuel Campbell.

ASSISTANT: Hello. How can I serve you?

USER: I would like to fly to DC to visit Lincoln Memorial, could you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, I can help you. On which dates would you like me to book a flight ticket for you?

USER: I want to start my journey on Aug 9th and my return date will be on Aug 9th.

ASSISTANT: From which airport would you like to leave from?

USER: My source airport code is DFW and my destination airport code is IAD.

ASSISTANT: Ok. Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: Can you please re-check your return date?

USER: Ok, my return date will be on Aug 11th.

ASSISTANT: Please wait.

USER: Ok, make sure I need a normal cost airline.

ASSISTANT: Ok. Thank you for sharing your journey details, we found a economy class ticket in UA airline with flight number-1005. Shall I book the ticket with single connection?

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your kind service.

ASSISTANT: Thank you for approaching us.