You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I provide assistance to you?

USER: On my name Timothy Martin reserve a seat to Washington DC - DCA for Twilight tour.

ASSISTANT: Sure, please provide your source point?

USER: Can you book my flight ticket from Philadelphia, PHL?

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Let me know when you want to travel?

USER: On 07/27 I will start travel. I will return on 07/29.

ASSISTANT: There is a connecting flight available in UA airline having a stopover. The fare is 100.

USER: Ok, proceed for booking.

ASSISTANT: Your booking has been reserved with a flight 1000.

USER: Thank you for booking my flight ticket.

ASSISTANT: Thank you for approaching us.