You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello. Kathleen Anderson here.

ASSISTANT:  Kathleen Anderson. How can I help you?

USER: I am looking a flight from BOS to EWR, can you help me?

ASSISTANT: Can you provide me with travel dates?

USER: My travelling dates are 09 and 11 of Dec.

ASSISTANT: Give me a new moment.

USER: Sure, take your own time.

ASSISTANT: Sorry to say that, there are no flights on your route.

USER: It's ok, not a problem.

ASSISTANT: Thank you for approaching us.