You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jason Brown.

ASSISTANT: How may I serve you? Nice to meet you Jason.

USER:  I would like to visit Lady Bird Lake at Dallas with my friend, please help me in booking a ticket from DCA to DFW?

ASSISTANT: Sure, tell me your travel dates please?

USER: My travelling dates are 05/05 and return on 05/07.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your patience. I have found UA airlines which flies with one connection. Yes, I have confirmed your flight ticket with flight number 1002.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket is reserved in UA airlines now.

USER: Thank you.

ASSISTANT: Thank you.