You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: Can you please help me to book a flight from IAH to reach SEA?

ASSISTANT: Sure, May I know the travelling dates?

USER: My preferable dates are on June 11th to 13th.

ASSISTANT: Do you have any connection limit?

USER: Yes.

ASSISTANT: Is there any other requirements?

USER: I would like to depart in afternoon time.

ASSISTANT: May I know your name?

USER: Sure, my name is Rachel Thomas.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.