You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to travel from HOU to IAD, can you help me with that?

ASSISTANT: Sure, let me know your travelling dates?

USER: My trip dates are 05/16 and 05/18.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: My return must be in evening.

ASSISTANT: Can I know your name?

USER: I am Kathleen Garcia.

ASSISTANT: Thanks for your details, there is no flight found on your desired journey routes.

USER: That's ok. Thank you for your service.

ASSISTANT: Thank you for availing us.