You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Patricia Evans. I want to book a ticket from BOS to IAH to attend seminar, can you help me in booking?

ASSISTANT: Sure, can you please let me know your travel dates?

USER: I am departing on 02/25 and return on 02/27.

ASSISTANT: Ok, please be online for a while.

USER: Please make it fast I have less data in my mobile.

ASSISTANT: Sorry Evans, there is no flight available on your preferred dates.

USER: That's ok, thank you for your information.

ASSISTANT: You are welcome and thank you for contacting us.