You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I need to celebrate my daughter first birthday in Seattle, WA - SEA on 03/10. Can you book a flight ticket?

ASSISTANT: Sure, can you please provide your origin and return date?

USER: I would like to start at Houston, TX - IAH on 03/09 and return on 03/11.

ASSISTANT: Ok, please wait. I will revert you.

USER: Sure.

ASSISTANT: Thanks for your patience. Unfortunately there are no flights found that fits your requirements.

USER: OK, no problem, thanks for your concern.

ASSISTANT: Thank you for choosing us. Have a good day. May I know your name?

USER: Jason Roberts is my name.

ASSISTANT: Thank you for giving information.