You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Brian Wright here.

ASSISTANT: How may I assist you?

USER: I just want to travel from MA-BOS to WA-SEA to meet my friend at Seattle on 03/28.

ASSISTANT: Sure, could you provide me your travelling dates?

USER: My return date is 03/30.

ASSISTANT: Ok, please wait for a minute.

USER: Sure. My connection limit is 1.

ASSISTANT: Sorry, no flight's found on your details.

USER: It is bad to hear that there is no flight.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.