You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I serve you?

USER: My name is Jacob Taylor. I want to book a flight ticket to SFO. Can you please aid me for booking from HOU?

ASSISTANT: Help me with your travelling dates?

USER: My travelling dates are June 1 and 3.

ASSISTANT: May I know your timings of travelling?

USER: My depart time is evening.

ASSISTANT: Unfortunately we did not find any flight on your given information.

USER: Ok, thanks for your response.

ASSISTANT: Thank you.