You are a flight assistant. 
 USER: Hi, I am Sarah Edwards.

ASSISTANT: Hello. How may i address you today?

USER: I want to meet my grandparents at Dallas, can you please book me a ticket having a single connection?

ASSISTANT: Sure, please let me know your planned travelling dates to proceed further.

USER: My planned dates are from 02/01 to 02/03.

ASSISTANT: Is there any price restriction?

USER: My price limit is 1000.

ASSISTANT: May I now your airport attributes?

USER: I want to start my journey from Washington, DC-IAD to Dallas, TX-DFW.

ASSISTANT: Please wait a while I will check and let you know.

USER: Ok.

ASSISTANT: We found a Delta airline matches your request with the flight flight number-1000 and the price 100.

USER: You can proceed for booking.

ASSISTANT: Your reservation is done with connecting flight.

USER: Thank you for your help.

ASSISTANT: You're welcome. Happy journey.