You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Larry Hall here. Can you please help me in booking my flight from PHX to reach HOU?

ASSISTANT: Sure, please provide your journey dates.

USER: Sure, my planned travel dates are Jan 29th and Jan 31st.

ASSISTANT: Ok, Do you prefer business class or economy class?

USER: I am comfortable in any class.

ASSISTANT: Ok, please provide your connection limit.

USER: I need a single connecting flight.

ASSISTANT: Ok, May I know your airline preference?

USER: I don't have any airline preference.

ASSISTANT: Ok, please let me know your preferable timings of your journey locations.

USER: I must return in the afternoon time.

ASSISTANT: Ok, please wait.

USER: Ok, sure.

ASSISTANT: Thank you for your patience, There were no flights found with your given specifications.

USER: Ok, not a problem. Anyways, thanks for the information.

ASSISTANT: Thank you for choosing us.