You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to travel from EWR to BOS as a holiday trip. Can you do the reservation?

ASSISTANT: Please help me with your travel dates.

USER: My journey dates are 11/17 and 11/19.

ASSISTANT: Can I know your name?

USER: Nicholas Roberts here.

ASSISTANT: Sorry, no flight found for your travelling dates.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you.