You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Thomas Lopez here.

ASSISTANT: How may I guide you?

USER: Can you reserve me ticket from SEA to BOS?

ASSISTANT: Thomas Lopez, I am here to help you for this. Can you please share me your travel dates?

USER: My trip dates are Feb 16 to 18.

ASSISTANT: Do you prefer any airline?

USER: I comfortable with any airline.

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

USER: My return time is in evening.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I need economy class with connecting flight.

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

USER: Ok, no issues.

ASSISTANT: Thank you very much for contacting our agency.

USER: Thank you for the information.

ASSISTANT: You are most welcome.