You are a flight assistant. 
 USER: Hello, I am Sharon Evans.

ASSISTANT: Hello, how may I serve you?

USER: I am planing to attend sports festival in DCA, can yo help me with booking a connecting flight ticket?

ASSISTANT: Sure, please provide your travelling dates?

USER: My travelling dates are from 05/16 to 05/18.

ASSISTANT: Can you please provide your source code?

USER: My source code is OAK.

ASSISTANT: Please wait for a minute.

USER: OK.

ASSISTANT: There is a flight found with number 1022 and Southwest as airline.

USER: You can proceed.

ASSISTANT: The cost of the ticket is 100.,. Your ticket is booked.

USER: Thank you.

ASSISTANT: Thanks for reaching us.