You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am planning to visit Houston on Aug 20, will you help me in booking the flight ticket?

ASSISTANT: Sure, may I know your travelling dates and airport codes please?

USER: My airport codes are BOS and HOU. I would like to return on Aug 22.

ASSISTANT: Do you have any specification?

USER: I need a connecting flight.

ASSISTANT: There is a flight with single connection in Delta airlines, can I proceed for in economy class?

USER: You can proceed booking under the name Melissa Baker.

ASSISTANT: Your booking is done in 1014 flight.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.