You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Jacob Baker. I am looking for a direct flight from BOS to HOU, can you please help me to book a flight ticket?

ASSISTANT: I am happy to help you, may I know your dates of travel?

USER: Sure, my travelling dates are Apr 04 and Apr 06.

ASSISTANT: May I know your airline preferences?

USER: I am fine with any airline.

ASSISTANT: Is there any other specifications?

USER: My return time is evening.

ASSISTANT: Sorry, no flight is available for you as per your requests.

USER: That's ok, thank you for your information.

ASSISTANT: Thanks for contacting us.