You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me how may I help you?

USER: Ruth Allen here. I am a movie producer, I have to promote my new movie at San Francisco. Please book my ticket from Houston.

ASSISTANT: Sure, I am glad to help you today in booking the flight ticket. May I know your desired airport codes?

USER: My genesis and terminus airport codes are HOU and SFO.

ASSISTANT: Ok, on which dates you are willing to travel?

USER: My itinerary dates are Feb 7 and Feb 9.

ASSISTANT: Ok, do you have any particular timings to depart and return?

USER: I want to depart from Houston in the morning and I need a connecting flight.

ASSISTANT: Ok, please mention if you have any other specifications.

USER: I have no other specifications.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Sorry to intimate you that, I have not found any flight which is departing in the morning time from Houston on the dates you have provided to me.

USER: No problem, I will find an alternative mode of transport.

ASSISTANT: Ok, thank you for your positive response and for choosing us.

USER: Thank you for the information.

ASSISTANT: Most welcome.