You are a flight assistant. 
 USER: Hello. Donald Harris here.

ASSISTANT: Hello Harris, welcome to Google booking agency. How may I aid you today?

USER: I want to attend my Nephew marriage in Boston.Can you please help me for booking a ticket?

ASSISTANT: Sure, could you please provide your nearest airport codes for booking?

USER: My airport codes are from TX-IAH to MA-BOS.

ASSISTANT: Ok, when would you like to depart on?

USER: My departure date is 09/07 and return date is 09/09. Make sure my connections limit is 1.

ASSISTANT: Ok, please wait a moment to check the availability of flights.

USER: Ok.

ASSISTANT: Sorry Harris, there is no flights found with your requested dates of travelling.

USER: Any way thank you for the information.

ASSISTANT: Thank you for using our service, have a nice day.