You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: James Carter here.

ASSISTANT: How can I help you today?

USER: Actually, I am looking for a direct flight because of emergency, so can you please help me out with booking of a flight ticket?

ASSISTANT: Sure, I can help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Can you please let me know your travel dates for booking flight ticket?

USER: My boarding is on 10/24 and please book a return ticket on 10/26.

ASSISTANT: May I know your preferable airport code names?

USER: I want to travel from BOS to ORD.

ASSISTANT: Please wait a moment, I will check flight availability.

USER: Sure, take your time.

ASSISTANT: Sorry for the inconvenience no direct flights available as per your requested dates.

USER: Oh! So sad to hear. Anyway, I will choose another airlines to go there. Thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Most welcome.