You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to go to Boston in this week so can you please help me in flight ticket booking process from DCA to BOS?

ASSISTANT: Sure, may I know your travel dates?

USER: Thank you for your response, I want to take off on Aug 10 and book my return ticket also on Aug 12.

ASSISTANT: Please share me your name.

USER: Sure, my name is Mark Davis.

ASSISTANT: Do you have any specifications?

USER: I will prefer economy class flight for this journey.

ASSISTANT: Flight-1001 is available with American airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Please book this flight ticket for me.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for assisting me.

ASSISTANT: Thank you.