You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me in doing a reservation from DCA to OAK?

ASSISTANT: Please provide your trip dates.

USER: My journey dates are June 15 to 17.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Are there any other specifications?

USER: I am comfortable to travel in normal-cost airline.

ASSISTANT: Can I know your good name?

USER: I am Laura Martinez.

ASSISTANT: United Airline is available with the price of 100 having one connection and economy class. Shall I proceed to booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved with the flight- 1000.

USER: Thank you.

ASSISTANT: Thank you for choosing us.