You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Dorothy Robinson and I want to book the flight ticket from MSP to EWR.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travel dates are 07/07 and 07/09.

ASSISTANT: Do you have any other specifications?

USER: My depart time should be in the morning. I need a halt in my journey.

ASSISTANT: Sure, please wait for a moment.

USER: Take your time.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Ok, thank you for the information.

ASSISTANT: Most welcome.