You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Carolyn Phillips here.

ASSISTANT: How may I lend a hand to?

USER: I'm planning to attend my friend's wedding, can you book a ticket from BOS to DFW?

ASSISTANT: Carolyn Phillips, I am willing to help you for this. Could you please provide me your travel dates?

USER: Sure, my planned departure and return travel dates are 27th and 29th of Jan.

ASSISTANT: Do you prefer any airline?

USER: No, I'm ok with any airlines.

ASSISTANT: At what time are you planning to depart and return?

USER: I want to return in the morning time.

ASSISTANT: Is there any other specifications regarding your journey?

USER: Yes, I need single connected flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry for inconvenience, no flights are found with your criteria.

USER: That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you very much for contacting our agency.