You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kevin Thompson here.

ASSISTANT: How may I assist you?

USER: I want to meet my Facebook friend, so please book my ticket from IAH to HOU.

ASSISTANT: Sure, I will help you. Can I have your planned travel dates please?

USER: My itinerary dates are Jan 5 and Jan 7.

ASSISTANT: May I know your connection preference?

USER: I need a connecting flight.

ASSISTANT: Can I know your specific timings of your journey?

USER: I want to return in the evening.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Kevin Thompson, no flights has been found on your specifications.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.