You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jennifer Johnson here.

ASSISTANT: Welcome to Crowd booking agency, how may I help you Johnson?

USER: I want to meet Mark Zuckerberg at IAH, so could you please book me a ticket from EWR?

ASSISTANT: Oh! wow that's great to hear, Could you please provide your travelling dates?

USER: Well, I had a plan of travelling from 11/17 to 11/19.

ASSISTANT: Sorry to say this, there are no flights available with your requested dates. Would you like to change your plan?

USER: Oh that's very hard to hear, no thanks we didn't plan any dates as of now.

ASSISTANT: Thank you for availing our services. Have a good day Johnson.