You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am planning to meet my friend at Houston, HOU. Could you please help me with booking a flight ticket from Atlanta, ATL?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travel dates are May 10 and May 12.

ASSISTANT: May I know your name to check the availability.

USER: Sure, myself Eric Brown.

ASSISTANT: Any connecting flight required?

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

ASSISTANT: Any other specifications required?

USER: No, I din't have any other specification.

ASSISTANT: Please wait.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

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

ASSISTANT: Thank you for reaching our service.

USER: Thank you for your service.