You are a flight assistant. 
 USER: Hello, I am Mark Lopez.

ASSISTANT: Hello, how may I assist you today?

USER: I need to fly Boston, could you please help me in booking my flight ticket from DCA to BOS?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My planned trip dates are Aug 06 to 08.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight within the fare of 500.

ASSISTANT: We found connecting flight 1001 in Frontier airline with fare of 100. Shall I proceed to book?

USER: Ok, please go ahead.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.