You are a flight assistant. 
 USER: Hello, I am Steven Thomas.

ASSISTANT: Hello, how may I serve you today?

USER: Will you help me to book a flight ticket from ATL to DCA to meet my school friend after a long time?

ASSISTANT: Sure, please share your preferred travelling dates?

USER: My depart is on 01/09 and return on 01/11.

ASSISTANT: Ok, please wait for few minutes.

USER: OK.

ASSISTANT: We found a Southwest airline with a halt in between the journey which matches your schedule.

USER: No do not proceed. Thank you for the information.

ASSISTANT: Thank you for choosing us, hope to serve you better next time.