You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Baker.

ASSISTANT: Debra Baker, how may I aid you?

USER: I would like to book a ticket from LAX to HOU, can you please help  me out?

ASSISTANT: Sure, please share your itinerary dates.

USER: I am travelling on these dates April 1st and 3rd.

ASSISTANT: Do you have any specifications?

USER: I need single connection. I need a normal cost.

ASSISTANT: Please wait for a while, let me check for a best flight.

USER: Sure.

ASSISTANT: Sorry, no flights are available as per your requirements.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.