You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit a trip at Houston. Could you please help me with booking a flight ticket from OAK to HOU?

ASSISTANT: Sure, may I know your travelling dates?

USER: Ok, my planned travel dates are from Nov 21 to Nov 23.

ASSISTANT: Please mention your good name to proceed further?

USER: Sure, myself Jeffery Mitchell.

ASSISTANT: Is there any connection limit?

USER: Yes, I am looking for  a connecting flight in my journey.

ASSISTANT: Do you have any particular departure and arrival timings?

USER: No, I am comfortable with any timings.

ASSISTANT: Is there any class preference?

USER: No, I am ok with any class.

ASSISTANT: May I know your airlines preference?

USER: No. Please start checking for a  best flight for my journey.

ASSISTANT: Sorry, there are no flights available on your particular dates to travel.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for choosing us.