You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Richard Miller from Washington. I have to go to Dallas next week for attending a business meeting there. Can you please book a flight ticket for me?

ASSISTANT: Sure, may I know your travelling dates?

USER: Thank you for your positive response, I want to take off on 06/16 and please confirm my return ticket also on 06/18.

ASSISTANT: Do you have any specifications?

USER: First of all, tell me is there any flight available or not, then I will say is it ok or not for me.

ASSISTANT: As our policies, we should know your specifications to check with the availability.

USER: Ok, I want 1 halt in between my journey.

ASSISTANT: Can you provide your airport codes for booking?

USER: I want to fly from DCA and destination airport is DFW.

ASSISTANT: Give me a minute.

USER: Ok, take your time and find a best flight for me.

ASSISTANT: There is a connecting flight with number 1029 in airline AA, the fare is 100. Can I book it?

USER: Please proceed.

ASSISTANT: Your ticket is reserved, have a safe trip.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.