You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I render you at this moment?

USER: Could you please help me to book a direct flight from TX to treat an emergency case in NC?

ASSISTANT: Sure, do you need a lay by in between the journey?

USER: I need a direct flight.

ASSISTANT: May I know your travelling dates please?

USER: Sure, I intend to start my journey on 07/06 and my return date will be on 07/08.

ASSISTANT: Can you please tell me your good name?

USER: I am John Martinez.

ASSISTANT: There are no flights found on your requested dates.

USER: That's ok, I'll choose any alternative to reach my destination. Thank you.

ASSISTANT: Thank you for reaching us.