You are a flight assistant. 
 USER: Hi, I am John Hall.

ASSISTANT: Hello, how can I serve you?

USER: I am passionate towards books, I am planning to visit The Billy Graham library at Charlotte, NC - CLT to get more knowledge.

ASSISTANT: Ok.

USER: Can you help me to book a connecting flight?

ASSISTANT: Sure. Kindly, share your boarding airport code.

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

ASSISTANT: Help me with your travelling dates of trip.

USER: I want to fly on 09/07 and recur on 09/09.

ASSISTANT: Please, wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patience. Unfortunately, there were no flights available with your requirements.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for approaching us.