You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Christine Thompson here.

ASSISTANT: How can I aid you?

USER: I am looking for a flight ticket with afternoon as the return time. So can you book it for me?

ASSISTANT: Sure, I will help you, May I know your travelling dates?

USER: The travel dates are from 16 Mar to 18 Mar.

ASSISTANT: Can you share me your airport codes?

USER: My airport codes are from CLT to BOS.

ASSISTANT: Do you have any other preferences?

USER: I need a single connecting flight.

ASSISTANT: Thanks for your details, there are no flights found on your data.

USER: That is not a problem. Thank you.

ASSISTANT: Thank you.