You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Melissa Campbell.

ASSISTANT: How can I help you?

USER: Please book a flight ticket from PHL to EWR in the month of March.

ASSISTANT: May I know the dates of journey?

USER: Sure, my travelling dates are from 03/22 and 03/24.

ASSISTANT: Sorry, there is no flight found.

USER: it's fine.

ASSISTANT: Thank you.

USER: Thank you for the information.