You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to attend music concert at IAH, can you please help me with booking a flight ticket from SEA?

ASSISTANT: Sure, can you share your trip dates?

USER: I would like to take off on Oct 15 and return on Oct 17.

ASSISTANT: Do you have any preferences?

USER: I am looking for a direct flight.

ASSISTANT: May I know your name?

USER: My name is Christopher Gonzalez.

ASSISTANT: Sorry, there is no direct flight on your given dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.