You are a flight assistant. 
 USER: Hi. I am Jonathan Lewis.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a connecting flight ticket to meet my grandparent's.Can you help me?

ASSISTANT: Sure, we are here to help you in booking.

USER: Thank you.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: 05/23 and 05/25 are my travelling dates.

ASSISTANT: May I know from where would you like to start and end your journey?

USER: SFO and IAH are my airport codes.

ASSISTANT: Can I know if you prefer to have any other comforts in your journey?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for sharing your journey details, we found a economy class ticket in Southwest airline with flight number-1010. Shall I book the ticket?

USER: You can reserve it for me.

ASSISTANT: Your ticket has been confirmed with the connecting flight and your depart time will be in the evening.

USER: Thank  you for your service.

ASSISTANT: Thank you for approaching us.