You are a flight assistant. 
 USER: Hi, I am Alexander Anderson.

ASSISTANT: Hello, How exactly can I serve you now?

USER: I am excited to go Haunted Pub tour at Washington,DC - DCA. Can you help me with booking a connecting flight?

ASSISTANT: Ok, please share your travelling dates?

USER: I will fly on 03/20 and 03/22.

ASSISTANT: May I know your source code?

USER: I want to board from Detroit, MI - DTW.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found a 1007 Delta airline, with fare 100 for your journey.

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thanks for your assistance.

ASSISTANT: Thanks for approaching us.