You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please assist me with flight ticket booking for my journey?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: Thanks a lot for accepting my requesting and I have planned my preferable journey dates on 24 Dec and back on 26 Dec.

ASSISTANT: Can you please mention your source and destination airport codes?

USER: Sure, I would like to start from BOS location and I want to departure at HOU location.

ASSISTANT: Do you have any connection limit?

USER: Yes, please find a flight with single stop over.

ASSISTANT: Is there any class preference?

USER: Right now I don't have any class preference.

ASSISTANT: May I know your name please?

USER: I am Emily Nelson.

ASSISTANT: Do you have any requirements?

USER: I have planned to departure at afternoon time, please check with this one.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Not a problem with that one, I can prefer any other source. Thank you for your information.

ASSISTANT: Thank you for reaching us.