You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Anna Davis here.

ASSISTANT: How can I aid you?

USER: I want to reserve my ticket from IAD to HOU, can you please help me?

ASSISTANT: Sure, may I know your planned travel dates to check for the flight availability?

USER: Sure, my preferable dates of journey are from 05/25 to 05/27.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 1012 in Delta airlines.

USER: You can book it.

ASSISTANT: Your ticket has been confirmed for the flight 1012 in Delta ailines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.