You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a flight ticket from ALT to DFW?

ASSISTANT: Sure, can I know your name?

USER: Ok, please book a ticket on the name Stephen Moore.

ASSISTANT: Thank you. Please tell us your travel dates.

USER: Ok, please book a ticket for the dates Jan 6th and Jan 8th respectively.

ASSISTANT: Is there any class preference?

USER: Yes, I need a economy class flight.

ASSISTANT: Is there any other preferences?

USER: Ok, please check for the direct flight.

ASSISTANT: Sure, please wait. Let me check.

USER: Ok, I will wait take your own time.

ASSISTANT: Sorry, I did not find any direct flight available on your preferred travel dates.

USER: Ok, thank you for the information I will book my ticket next week.

ASSISTANT: You are welcome and thank you for approaching us.