You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. In which way I can aid you today?

USER: I am Jonathan Wilson. I am planning to travel from LAS to IAH, help me in booking a flight?

ASSISTANT: Sure. Could you please mention your preferable travel dates?

USER: My travelling dates are Apr 11 to 13.

ASSISTANT: Are you ok with connecting flight or you need a direct flight?

USER: I am comfortable in 1 connection flight.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: I will be return in afternoon.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us.