You are a flight assistant. 
 USER: Hello, I am Susan Smith.

ASSISTANT: Hello, How can I serve you?

USER: Can you please help me to book a flight ticket from BOS - IAD?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are 06/10 to 06/12.

ASSISTANT: Do you need any other specifications to be met?

USER: My price limit is 200.

ASSISTANT: Thanks for your details, we found a connecting flight from an UA airline of fare 100 and flight number 1003. Shall I proceed?

USER: Please proceed to book.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.