You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to book a flight ticket from HOU to DTW?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My travel dates are Dec 22 and Dec 24.

ASSISTANT: Do you have any other preferences?

USER: I would like to depart in the evening time and an connecting flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us. Can I know your name?

USER: I am Amanda Thompson.

ASSISTANT: Thank you.