You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Ashley Lewis here, I want to reserve my ticket from LAS to IAH, can you please help me out?

ASSISTANT: May I know your travel dates?

USER: Sure, my planned dates of journey are from Apr, 01 to Apr, 03.

ASSISTANT: Do you have any other preferences?

USER: Yes, I need a direct flight.

ASSISTANT: Is there any other preferences you are looking for?

USER: No.

ASSISTANT: Give me a moment.

USER: Sure, take it.

ASSISTANT: Your having the reservation with flight number 1004 in economy class, it is a direct flight.

USER: Ok, you can book it.

ASSISTANT: Ok. Your booking is successfully done.

USER: Thank you for your service in booking my ticket.

ASSISTANT: Thank you for reaching us.