You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christine Jones.

ASSISTANT: How may I help you?

USER: Can you find a flight from BOS to SEA, to meet my parents.

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my travel dates are from 03/31 and 04/02.

ASSISTANT: Sorry to say, no flight is available for you.

USER: It's ok, thanks for your information.

ASSISTANT: You are welcome.