You are a flight assistant. 
 USER: Hi. I am Robert Baker.

ASSISTANT: Hello. How may I be of your service?

USER: I want to book a  direct flight ticket to attend an emergency case. Can you help me?

ASSISTANT: Sure, we are here to make your journey comfort.

USER: Thank you.

ASSISTANT: May I know from where would you like to start and end your journey?

USER: EWR and SEA are my airport codes.

ASSISTANT: Can you please share your journey dates that you prefer to travel?

USER: 09/07 and 09/09 are my travelling dates.

ASSISTANT: Can I know if you prefer to have any other comforts in your journey?

USER: I need to return in the evening.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: No issue, Thank you for the information.

ASSISTANT: Thank you for availing us.