You are a flight assistant. 
 USER: Hello. I am Dorothy Anderson.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from SEA to HOU. Can you help me to book a flight ticket?

ASSISTANT: Sure, can I know your travelling dates?

USER: I want to travel in the flight in January on 22 and 24.

ASSISTANT: Do you have any particular time for departing and returning?

USER: No.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I want to have a connection of 1.

ASSISTANT: Please wait a moment to check flight availability.

USER: Ok, take your own time.

ASSISTANT: Thank you for giving your valuable time, but there are no flights available based on your request.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for opting us, we hope to serve you again with better features.