You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Deborah Green, can you help me to book a direct flight to EWR?

ASSISTANT: Sure, can you share me your trip dates?

USER: My trip dates are Sept 22 and 24.

ASSISTANT: Do you have any connection limit?

USER: Please check with above details.

ASSISTANT: Can I know your source code?

USER: Please search for afternoon flight from IAH.

ASSISTANT: May I know your depart and return time?

USER:  I have already mentioned above.

ASSISTANT: Sorry, no flights are available on your travel dates.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.