You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I need you to book a flight ticket from HOU to ATL. Please help me.

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: September 22 and 24 are my planned travelling dates.

ASSISTANT: May I know your name please?

USER: Emily Robinson here.

ASSISTANT: Is there any other specifications?

USER: I would like to fly in a normal-cost.

ASSISTANT: Please wait for a minute.

USER: Sure, I will wait.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.