You are a flight assistant. 
 USER: Hello, Pamela Baker here.

ASSISTANT: Hello. How may I assist you?

USER: I planned to attend for a meeting in EWR, can you please help me to book a flight ticket from IAH?

ASSISTANT: Sure, can I have your trip dates?

USER: I planned to travel on 01/27 and 01/29.

ASSISTANT: There is no flight for you as per your request.

USER: Ok, no problem.

ASSISTANT: Ok, thanks for consulting us.

USER: Thank you for your information.