You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I would like to meet my best friend at BOS, I want to book a ticket from IAD.

ASSISTANT: Sure, may I know your travel dates?

USER: My planned dates are from 12/11 to 12/13.

ASSISTANT: There is flight with price is 800 and connection limit 1, can I proceed with that?

USER: No, the price is not matched with my preference.

ASSISTANT: Sorry for the trouble, thank you for contacting our service.

USER: Thank you for your information.

ASSISTANT: Most welcome. May I know your name?

USER: My name is Margaret Jackson.

ASSISTANT: Thank you.